MEETINGS
24th ACS Midwest Regional Meeting The 24th ACS Midwest Regional Meeting will be held Nov. 1-3 at the Clarion Hotel, St. Louis, Mo. The meeting is hosted by the ACS St. Louis Section and will feature 225 technical posters and seven symposia. A session for undergraduate chemistry students to present their research will also be held. Programs and workshops in chemical education, called Learning To Teach /Teaching To Teach will be held for K-12 teachers. A special session for college faculty members who teach future chemistry teachers will be part of the program. Highlights of the meeting will be a general mixer on Wednesday evening, Nov. 1, featuring "The Knights of Swing"; the Presidential Luncheon with an address by Clayton Callis, ACS president, on Thursday at noon; the Midwest Award in Chemistry and banquet honoring Robert Murray, University of Missouri, St. Louis, Thursday evening; and the Education Luncheon for teachers on Friday at 12:15. Linda Kralina, the 1989 High School Chemistry Teaching Award winner from the St. Louis Section, will speak on the "Chemulator." A chemical exposition will be held Wednesday to Friday in the South Exhibit Hall of the Clarion Hotel. The exposition will consist of products and services from various manufacturers and suppliers of scientific instruments, chemicals, computer hardware and software, and scientific books. For additional information, contact J. Gambaro, Protein Technologies International, Checkerboard Square, St. Louis, Mo. 63164, phone (314) 982-3011. A National Employment Clearing House (NECH) will be held during the meeting. The hours will be Wednesday, 5 to 9 PM (registration only); Thursday, 8:30 AM to 5 PM; and Friday, 8:30 AM to noon. Candidates and employers may obtain the necessary registration forms by writing the ACS FRIDAY
SPECIAL EVENTS WEDNESDAY EVENING 5:00-9:00—Registration, Main Foyer 5:00-9:00—National Employment Clearing House (NECH) 7:00-9:00—Chemical Exposition, South Exhibit Hall 7:00-9:00—General Mixer, South Exhibit Hall
8:00 AM-noon—Registration, Main Foyer 8:30 AM-noon—National Employment Clearing House (NECH) 8:30 AM-noon—Chemical Exposition, South Exhibit Hall Noon-1:30 PM—Midwest Regional Steering Committee Luncheon (by invitation only) 12:15-1:30 PM—Education Luncheon and address. L. Kralina, 1989 High School Chemistry Teaching Award winner. Tickets $5 and $10
Employment and Career Services Office, 1155—16th St., N.W., Washington, D.C. 20036, or by calling toll free (800) 227-5558. Candidates must be ACS members or student affiliates. Meeting participants are encouraged to register in advance, returning the form on page 41 before Oct. 20. On-site registration will be held in the registration area on Wednesday from 5 to 9 PM, Thursday from 8 AM to 5 PM; and Friday from 8 AM to noon. Advance registrants will be able to pick up their registration packet with event tickets in the registration area during registration hours. Preregistration for luncheons and banquet is strongly encouraged. A block of rooms has been reserved for meeting participants at the Clarion Hotel at the special meeting rate of $70 for single or double rooms. Contact the Clarion Hotel directly for reservations before Oct. 6 to ensure that hotel space is available. Return the form on page 41 to the Clarion Hotel, 200 South 4th St., St. Louis, Mo. 63102, or call for reservations: in Missouri call (800) 392-7310 or outside Missouri call (800) 325-7353. In order to receive the special meeting rates, identify yourself as attending the Midwest Regional Meeting. Special airfare rates are available on Trans World Airlines (TWA), the official carrier for the ACS 24th Midwest Regional Meeting in St. Louis. For information on the special rates available to attendees, call (800) 325-4933 and request reference profile number 9910994 when making inquiries. Additional information regarding the meeting may be obtained from Thomas P. Layloff, general chairman, National Center for Drug Analysis, 1114 Market St., St. Louis, Mo. 63101, phone (314) 539-2134; or James Riehl, program chairman, Department of Chemistry, University of Missouri, St. Louis, St. Louis, Mo. 63121, phone (314) 553-5311. 9:15—2. Chemical Sensors Based on Modulation of Work Function. J. Jinata 9:55—3. Luminescent Semiconductor Sensors. A. B. Ellis 10:50—4. Metal Oxide/Polymer Solid-State pH Sensor. P. J. Kinlen. 11:30—5. Stable Ferrocene-Based Reference Electrodes. J. K. Bashkin
Missouri Room Enzyme Mimics: a Memorial Symposium in Honor of M. L. Bender. V. D'Souza, Presiding
THURSDAY 8:00 AM-5:00 PM—Registration, Main Foyer 8:30 AM-5:00 PM—National Employment Clearing House (NECH) 8:30 AM-5:00 PM—Chemical Exposition, South Exhibit Hall Noon-1:30 PM—Presidential Luncheon and address. C. Callis, ACS President. Tickets $12 4:30-5:30 PM—Local Section Officers and Councilors Meeting 6:00-7:00 PM—Midwest Award Reception, cash bar 7:00-9:00 PM—Midwest Award Banquet and address. R. Murray, Recipient of the 1989 Midwest Award. Tickets $20
SYMPOSIA THURSDAY MORNING Jefferson Room A and B Solid-State Chemical Sensors P. Kinlen, Presiding
8:30—Introductory Remarks. V. D'Souza 8:45—6. Source of Intramolecular and Enzymatic Activity. F. Menger 9:30—7. Calixarenes: Chemistry in Molecular Baskets. D. Gutsche 10:30—8. Artificial Metalloenzymes Based on Covalent and Noncovalent Association Mechanisms. A Myron Bender Homage. A. W. Czarnik 11:15—9. Supramolecular Complexation and Catalysis in Aqueous Solution. F. Diederich
Jefferson Room C Polymer Characterization
F. D. Blum, H. L. Collier, Organizers H. L. Collier, Presiding 8:30—Introductory Remarks. H. L. Collier 8:35—10. Characterization of TransitionMetal Complexes of Polyurethanes. M. L. Colgan 9:05—11. Novel Simultaneous Desilylation and Michael Addition Reactions of Trimethylsilylethynyl Ketones: Direct Synthesis of Poly(enamine-ketones) from Bis(trimethylsilylethynyl) Ketones and Diamines. J. M. Wilbur Jr. 9:35—12. PMMA and Its Surface Motions. J. O. Stoffer 10:20—13. Molecular Orbital Studies on the High-Performance Rodlike Polymers Poly(benzobisoxazole) (PBO) and Poly(benzobisthiazole) (PBT). W. J. Welsh 10:50—14. Effects of Constrained Chain Conformations on Polymer-Solute Interactions in Semicrystalline Polymers. P. Neogi 11:20—15. Permeation of Organic Solvents through Polybutylene. C. C. Thompson
8:30—Introductory Remarks. P. Kinlen 8:35—1. Light-Addressable Chemical Sensors in Silicon. L. Bousse
September 18, 1989 C&EN
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Meetings THURSDAY MORNING & AFTERNOON Learning to Teach/Teaching To Teach, Parti
J. E. Bundschuh, Organizer, Presiding (Room location unavailable) 9:00—Introductory Remarks 9:15—16. Is a Good Chemistry Background Enough To Teach Chemistry Effectively? E. Schultz 9:45—17. St. Louis Public Schools/Mallinckrodt Partnership Program. J. W. Walker, G. B. Vermont, K. A. Huelsing 10:30—18. Research as Chemical Education. Programs for High School Chemistry Teachers. M. P. Doyle 11:00—19. Project Interaction: an Effective Model for the Continuing Education of High School Chemistry Teachers. D. J. Antion 11:30-20. Computer-Aided Instruction (SERAPHIM) in the Teaching of Chemistry. J. Lagowski 1:30—21. Subject Matter Component in the Preparation of Chemistry Teachers. Dudley Herron 2:00—22. Learning How To Use Alternatives to the Classical Lecture Format. G. Bodner 2:30—23. Overhead Projector Demonstrations. D. Kolb 3:00—24. Simple Organic Demonstrations. K. Kolb
THURSDAY AFTERNOON Illinois Room
Missouri Room Workshop on SARA Title III: Risk Communication
J. A. Parr, Organizer, Presiding 9:00—Welcoming Remarks. J. A. Parr 9:05—37. Overview of SARA Title III. E. C. Vest 9:55—38. Communicating Chemical Risk Information to the Public. R. Pryor 10:15—39. Meeting the Needs of the Media. C. Bertleson 10:30—40. Responding to Questions about Routine Releases. D. Martin 10:50—41. Risk Communication and Emergence Releases. G. Young 11:10—42. Open Panel Discussion
FRIDAY MORNING & AFTERNOON Learning to Teach/Teaching To Teach, Part II
K. J. Dombrink, Organizer (Room location unavailable) Session A
L. Kralina, Presiding 8:20—Introductory Remarks 8:30—43. Elementary Classroom Chemistry. C. W. McLaughlin, R. B. Stucki 9:15—44. Middle School Physical Science Activities. M. E. Harris 10:00—45. Chemistry for Kids (Elem/Jr. High). M. Sherman Session B
High-Resolution NMR of Solids
J. E. White, Presiding
J. Schaefer, Presiding
8:20—Introductory Remarks 8:30—46. Hand-On Chemistry, Grades 4-8. V. R. Bryan, D. Winnett 10:00—47. Exploring Matter, Grades K-3. V. R. Bryan, D. Winnett
1:30—Introductory Remarks. J. Schaefer 1:35—25. Ozone-Induced Lysis of Vesicles byP-31 NMR. D. W. Larsen 2:20—26. Solid-State 13C and 15N NMR Studies of Polymer Substrates for SolidPhase Peptide Synthesis. J. R. Garbow 3:05—27. Structure and Dynamics of Crystalline Staphylococcal Nuclease. D. A. Torchia 3:50—28. Solid-State NMR Studies of Chain Dynamics of Poly(ethylene terephthalate) and Bisphenol-A Polycarbonate. P. M. Henrichs 4:35—29. Probing Molecular Structure and Dynamics and PEEK by Solid-State 13C NMR. M. S. Polliks
Jefferson Room A, B, and C
Session C
K. J. Dombrink, Organizer, Presiding 8:20—Introductory Remarks 8:30—48. Environmental Chemistry at Dreyfus. D. Lieneman 9:15—49. ChemCom Curriculum. J. Clark, S. Mueller 10:15—50. Getting Students To Profit from Chemistry. C. L. Schrader 11:20—51. Consumer Chemistry: the Chemistry Everyone Needs. R. A. Burns 1:30—52. Weird Science: a Phenomenological Approach to Teaching. L. R. Marek, D. Lieneman, B. Lewis, M. Offett
Inorganic Chemistry in Medicine
G. K. Anderson, W. R. Harris, Organizers W. R. Harris, Presiding 1:30—Introductory Remarks. W. Harris 1:35—30. Indium and Gallium Complexes as Radiopharmaceuticals. M. Welch 2:20—31. Inorganic Chemistry of Technitium and Rhenium as Applied to the Practice of Nuclear Medicine. E. Deutsch 3:20—32. Metallodrugs: Anticancer and Antiviral Agents. L. Marzilli 4:05—33. Chelating Agents for Toxic Metal Decorporation: Past, Present, and Future. M.Jones
FRIDAY MORNING Jefferson Room E Role of Chemistry in Human Health
F. Sweet, L. O. Rosik, Organizers F. Sweet, Presiding 8:30—Introductory Remarks. F. Sweet 8:35—34. Chemistry of Immunoconjugates: Drugs and Diagnostics for Cancer. F. Sweet 9:30—35. Unraveling the Molecular Connection between Sunlight and Skin Cancer. J. S. Taylor 10:35—36. Role of Chemistry in Human Reproduction. G. Teutsch
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September 18, 1989 C&EN
ANALYTICAL/ ENVIRONMENTAL CHEMISTRY
—56. Analysis of Fungicides in Leather. G. Zweerink, D. Vollmer, Shirley Williams —57. Volatile Organics in Whole Blood— Determination by Heated Dynamic Headspace Purge and Trap Isotope Dilution GC/MS. K. E. Boggess, P. H. Cramer, J. M. Hosenfeld, K. Bauer, J. C. Remmers, J. J. Breen, J. Or ban —58. Using a Quadrupole Ion Trap Mass Spectrometer for the Analysis of Biological Compounds. R. E. Kaiser, R. G. Cooks —59. Ion-Pair Chromatographic Determination of Perrhenate and Gentistic Acid. G. L. Jeyaraj, H. O. Lin, R. A. Roberts, R. R. Rizzolo —60. HPLC Determination of a New Class of Schiff Base Ligands, Sal3 TAME. G. L. Jeyaraj, K. R. Hill, R. A. Robertys, R. R. Rizzolo — 6 1 . HPLC Separation of Ibuprofen Enantiomers. J. A. Long —62. Capillary Electrophoretic Separations of Proteins Using Modified Silica Capillaries. J. Towns, F. Regnier —63. Differentiation and Monitoring of Genetically Engineered Bacteria with LaserBased Aminopeptidase Profiling. F. Basile, K. D. Hughes, F. E. Lytle —64. LC-MS with an Ion Trap Detector. C. Chavez, J. A. Koropchak —65. Headspace Sampling and Analysis of Air in Argon Overlays. C-d. C. Painton, R. A. Roberts, R. R. Rizzolo —66. Preconcentration Efficiency and Detection Limits in Capillary Gas Chromatography Using Thermal Desorption Modulation for Sample Introduction. Z. Liu, J. B. Phillips —67. Large-Volume Sample Introduction into Narrow Bore Gas Chromatography Columns Using Thermal Desorption Modulation and Signal Averaging. J. B. Phillips, Zaiyou Liu —68. Use of a New Chiral Crown Ether Stationary Phase. M. Hilton, D. W. Armstrong —69. STM Imaging of Electrochemically Deposited Lead on an Iodine Pretreated Pt(lll) Surface. S-L. Yau, B. C. Schardt —70. Scanning Tunnelling Microscopy of Adsorbates on Metal Surfaces. Iodine on Rh(100). R. M. Thiehsen, B. C. Schardt — 7 1 . Silver Underpotential Deposition of Platinum(lll). Examination with Scanning Tunnelling Microscopy. C. M. Vitus, B. C. Schardt —72. Improved Chemical Yields by an Enriched Isotope Press for Nuclear Medicine. R. K. Guimon, K. Beamer, G. Ehrhardt —73. Development of an Assay for Quantitation of Enzyme Inhibitors. N. J. Williams —74. Industrial Applications of Quantitative 31 P NMR. J. C. Burquin, J. K. Gard —75. Some Unexpected Interferences in Flames. S. J. Broadway, E. E. Pickett, S. R. Koirtyohann —76. Determination of Trace Metals in Polyurethane by ICP-AES. Rm. Panayappan, J. C. Cooper, R. Pellenbarg, E. D. Cooper
CHEMICAL EDUCATION J. F. O'Brien, Organizer FRIDAY MORNING
BIOCHEMISTRY/ MEDICINAL CHEMISTRY
J. B. Phillips, Organizer, Presiding THURSDAY AFTERNOON
M. S. Matta, Organizer
Posters will be displayed from 2 to 5 PM. Presenters will be in attendance from 4 to 5 PM.
THURSDAY AFTERNOON
South Exhibition Hall
Posters will be displayed from 2 to 5 PM. Presenters will be in attendance from 4 to 5 PM.
Poster Session
South Exhibition Hall
2:00—53. Chemical Forms of Selenium and Tellurium in Gas Phase. K. Y. Chiou, S. Muangnoicharoen, O. K. Manuel —54. Analysis of Organic Pollutants in an Ozark Stream. T. L. Rhoads, D. H. Beebe, W. K. Grindstaff —55. Improved Gas Chromatographic Methods for the Determination of Acrolein, Formaldehyde, and Acetaldehyde. D. V. Vinjamoori, K. J. Miller, C. H. Condra
—79. Sequence Effects on Bypass of cissyn-Thymine Dimers by DNA Polymerases in vitro. D. L. Svoboda, J. S. Taylor —80. Construction and Polymerase Studies of a DNA Template Containing a SiteSpecific Cyclobutane Dimer of Thymidylyl-(3'->5')-Uridine. N. Jiang, J. S. Taylor — 8 1 . NMR Studies of DNA Duplexes Containing cis-syrh and frans-syn-Thymine Dimers. D. S. Garrett, J. S. Taylor —82. Utilization of a 19F Residualizing Label for Characterizing Protein Metabolism by in-vivo NMR Spectroscopy. L. A. Scherrer, A. Daugherty, S. R. Thorpe, J. J. H. Ackerman —83. Novel Method for Localized NMR Spectroscopy of Deep-Lying Tissue in vivo. W. Chen, J. J. H. Ackerman —84. Examination of High-Energy Phosphates in Septic Rat Hearts by 31P NMR and Microfluorometric Enzymatic Techniques. R. D. Chen, S-K. Song, R. S. Hotchkiss, J. J. H. Ackerman —85. Micropulse Magnetic Resonance Studies of Human Blood Plasma. B. K. Ghosh, A. Winston, J. S. Rosenthal, S. G. Sullivan —86. Concomitant Quantification of Metabolism and Blood Flow via 2H/31P NMR in vivo. S-Kw Song, R. S. Hotchkiss, J. J. H. Ackerman —87. Characterization of a Low-MolecularWeight Acid Phosphatase—a Major Phosphotyrosyl-Protein Phosphatase from Bovine Heart. Z-Y. Zhang, R. L. Van Etten —88. Artificial Redox Enzymes. D. Rong, V. T. D'Souza —89. Secondary Deuterium Isotope Effects on 450P Catalyzed Epoxidations. N. W. Andrew, R. P. Hanzlik —90. Effects of Acetonitrile on the Solvent Isotope Effects in Pyruvate Decarboxylase Action. G. Hajipour, R. L. Schowen — 9 1 . Mechanistic Details of the Highly Efficient Cholesterol Esterase Catalyzed Hydrolysis of A/-Alkyl-2-naphthyl Ester Substrates. J. L. Lantz, L. D. Sutton, D. M. Quinn —92. Reaction Dynamics of Human Erythrocyte and Electric Eel Acetylcholinesterase-Catalyzed Hydrolysis of Acetylthiocholine. A N. Pryor, D. M. Quinn —93. Kinetic Isotope Effects on Catalysis by Aminoacylase I. M. S. Matta —94. Bile Acids: Intermediates in Preparation of UV-Absorbing Derivatives. W. H. Elliot, H. E. C. S. Ferreira —95. Effect of Deuterium Oxide on the Binding of Nicotinamide Adenine Dinucleotide and Sodium Pyruvate by Lactate Dehydrogenase. J. Seravalli, R. L. Schowen
Poster Session
J. Hunsley, Presiding 2:00—77. Structural Studies of Diphenolic Conjugates in Hemolymph of the Tobacco Hornworn, Manduca sexta. K. J. Kramer, T. D. Morgan, T. L. Hopkins —78. Multiplicative Site-Directed Mutagenesis: a New Technique for the Study of Protein Subunit Assembly and Structure. J. A. Zitzewitz, J. S. Taylor
Posters will be displayed from 9 AM to noon. Presenters will be in attendance from 11 AM to noon.
South Exhibition Hall Poster Session F. Hoggard, Presiding 9:00—96. Effective Laboratory Experiences: What Does the Research Say? T. E. Leonard —97. General Chemistry Laboratory Program: Experiments and Techniques That Improve Laboratory Safety and Air Quality. R. Fowler —98. Evidences for Sequential Learning. M. Readnour —99. MacLecture Project: Teaching Chemistry with a Macintosh Linked to an Overhead Projection System. R. J. Brenstein, C. C. Hinckley —100. Effect of Interactive Instructions on Student Performance. W. R. Robinson — 1 0 1 . What Do Multiple-Choice Examinations Examine? M. L. Hamby, W. R. Robinson
Prereglsttation form
24th ACS Midwest Regional Meeting Nov. 1-3
St. Louis, Mo.
Mail to 24th ACS Midwest Regional Meeting, c/o Debbie Vollmer, Monsanto Co., U4E, 800 North Lindbergh Blvd., St. Louis, Mo. 63167. Fax (314) 694-1531 (Please print): Miss/Mrs./Ms./Mr./Dr.
Please indicate planned symposium attendance: Solid-State Chemical Sensors (Thurs. AM)
Name (Last) Business Name.
(First)
(Ml)
Enzyme Mimics: Memorial Symposium in
.Phone.
Honor of Myron Bender (Thurs. AM)
Address
Polymer Characterization (Thurs. AM)
City.
. State.
Registration
.ZIP.
Learning To Teach/Teaching To Teach Part I (Thurs. AM and PM) High-Resolution NMR of Solids (Thurs. PM)
Education Luncheon:
ACS member
$35
Nonmember
45
All others
10
PM)
Student
10
Midwest Award Banquet
20
Teacher K through 12
10
. Role of Chemistry in Human Health (Fri. AM)
Guest nonchemist
No charge
Tech. Affil. Group
10
Presidential Luncheon
12
— One-day registration (Thurs.) . . . . One-day registration (Fri.)
25 20
K through 12 Teacher
$5.00
Total enclosed
$
Make checks payable to 24th Midwest Regional Meeting, ACS
Inorganic Chemistry in Medicine (Thurs.
SARA Title III: Risk Communication (Fri. AM) Learning To Teach/Teaching To Teach Part II (Fri. AM and PM) Hands-On Chemistry (K-3) Hands-On Chemistry (4-8)
On-site registration: $5.00 more except for luncheon, banquet, and guest prices.
Hotel Reservation Form Clarion Hotel-Saint Louis 200 South 4th St., St. Louis, Mo. 63102 (314) 241-9500
24th ACS Midwest Regional Meeting Nov. 1-3
St. Louis, Mo. Please reserve: Single • $70 Double • $70 Triple • Quad • Suite rates available upon request
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Accommodations will not be confirmed without a check for the first night's deposit or use one of the credit cards listed on this form to guarantee your reservation. You will be charged for the first night if reservations are not canceled 48 hours prior to arrival.
September 18, 1989 C&EN 41
Meetings —102. Chemistry Exams: Uses and Abuses. L. C. Grotz —103. REDUCE: a Program in BASIC and FORTRAN Which Reduces Reducible Representations. J. F. O'Brien, B. F. Schmidt —104. Temperature Dependence of EMF, a Computer-Controlled Experiment for Undergraduate Physical Chemistry. R. F. Hoburg, K. Barton, G. A. Pfeffer —105. Spectrophotometric Determination of pKa, an Experiment for Undergraduate Physical Chemistry. R. F. Hoburg, G. A. Pfeffer —106. Undergraduate Research as a Viable Learning Experience. L. L Lambing —107. Development of a Science Interdisciplinary Course. G. A. Pfeffer, R. Egan, R. Guenther, J. Peake —108. Dual Tracked Instruction—a Model for the Structure, Content, and Presentation of Secondary Science Teacher Workshops. L. J. Archer —109. Applications of Iowa Placement and ACT Scores in a Freshman Chemistry Program. E. C. Shearer —110. Assessment of the Preparation for General Chemistry through the Use of Iowa Placement Examination and ACT Scores. L. M. Nicholson — 1 1 1 . Reevaluation of the Lucas Test. R. A. Kjonaas, B. A. Riedford —112. Endocharm and Its Production in Organic Chemistry by Mastery Learning. D. L. Delaware, D. Afzal, K. R. Fountain —113. Formula Periodic Table for Benzenoid Hydrocarbons and the Aufbau and Excised Internal Structure Concepts in Benzenoid Enumerations. J. R. Dias
—125. Design, Synthesis, and Interstrand Crosslinking Efficiencies of a Series of Enantiomeric Bis(Diethylenetriamineplatinum(ll)) Complexes as Potential Nucleic Acid Conformation and Structure Probes. R. Alul, J-S. Tylor —126. Synthesis and Applications of /3-cylodextrino-Borane Compound. A. R. Khan, V. T. D'Souza, L. Barton —127. Characterization on N-4 Macrocyclic Multimetal Complexes: Ligand Effects on Metal Ion Binding Site Geometry. P. M. Secondo, H. L. Collier —128. Synthesis of Protein Bound Silica Microspheres That Contain Tb(lll) for Use in Immunoassay Procedures. R. R. Shankar, C. Y. Guo, Y. Alromy, S. Pickup, J. E. Kuo —129. Synthesis, Characterization, and Structure of Some New Rhodium(lll) Complexes as Potential Radiopharmaceuticals. T. Kilcoin, E. O. Schlemper —130. Equilibrium Constants and Serum Modelling of Lead, Bismuth, and Zinc Complexes of Dimercaptosuccinate. W. R. Harris, J. Z. Stenback, B. Shah, Y. Chen — 1 3 1 . Equilibrium Constants for the Binding of Gd(lll) to Human Serum Transferrin. Y. Chen, W. R. Harris —132. Kinetic of Iron Removal from Monoferric and Cobalt Labelled Monoferric Transferrins by Nitrilotris(methyl-enephosphonic acid). P. K. Bali, W. R. Harris
—146. Syntheses and X-Ray Structure of monomeric (775-C5Me5)Pt(IV) Methyl and Bromo Complexes. S. Roth, P. R. Sharp, V. Ramamoorthy —147. Synthesis and Molecular Structures of frans-(C2H4)CIPt(M-CI)(At-pz)Pd(7?3CH2CHCH2) and frans-(CO)CIPt(/*-CI)(Mpz)PtCI(CO). B. A. Fithen, W. C. Deese, D. A. Johnson, A. W. Cordes —148. Preparation and Structural Studies of C5H4PPh2-Bridged Diplatinum Complexes. M. Lin, G. K. Anderson, M. Y. Chiang —149. Reactions of C5H4PPh2-Bridged Diplatinum Complexes. S. Fallis, G. K. Anderson, K. A. Juhasz, M. Lin —150. Photochemical Studies of Diphosphineplatinum Oxalate Complexes. J. W. Siria, G. K. Anderson, G. J. Lumetta — 1 5 1 . Reactions of Tris(triphenylphosphinegold)-Oxoniumtetrafluoroborate with Nucleophiles. V. Ramamoorthy, P. R. Sharp
ORGANIC CHEMISTRY M. S. Tempesta, Organizer THURSDAY AFTERNOON
FRIDAY MORNING
Posters will be displayed from 2 to 5 PM. Presenters will be In attendance from 4 to 5 PM.
Posters will be displayed from 9 AM to noon. Presenters will be In attendance from 11 AM to noon.
South Exhibition Hall Poster Session A
South Exhibition Hall
INORGANIC CHEMISTRY Poster Session G. K. Anderson, P. Sharp, Organizer THURSDAY MORNING Posters will be displayed from 9 AM to noon. Presenters will be In attendance from 11 AM to noon. South Exhibition Hall Poster Session
W. Buhro, Presiding 9:00—114. Phosphido-lndium Precursors to InP: [(t-Bu)2ln(P(SiMe3)2)]2 and (t-Bu)ln [P(SiMe3)2]2- D. Cha, M. Y. Chiang, W. E. Buhro —115. Homoleptic Silylphosphido Complexes of Divalent Metals and Their Use in the Preparation of ll 3 -V 2 and ll-IV-V2 Compounds. S. C. Goel, M. Y. Chiang, W. E. Buhro —116. Synthesis and Properties of Homoleptic Bismuth Alkoxides. M. A. Matchett, M. Y. Chiang, W. E. Buhro —117. Synthesis and Characterization of C03(C0)9C(CH2)50H: a Micellar Cluster. N. P. Rath, A. Aradi, J. Basil, T. P. Fehlner —118. Solution Reactions of Centered Zirconium Cluster. F. Rogel, J. D. Corbett —119. Rare-Earth-Metal-Cluster Iodides Centered by Transition Metals: Syntheses and Structures of R7I12M and R6lioM Compounds (R = Y, Pr, Gd; M = Co-Cu, Ru-Pd, Re-Pt). M. W. Payne, J. D. Corbett —120. Condensation of Primary and Secondary Hydrosilanes to Silicon Oligomers. X-H. Zhu, J. Y. Corey — 1 2 1 . Variable Temperature NMR Studies of 10,11-Dihydro-5H-dibenzo[b,f]silepins. L. D. Lange, J. Y. Corey —122. NMR Studies of Group VI Metal Subcarbonyls Supported in Zeolites. W. M. Shirley, C. A. Powers, J. S. Frye —123. Polarized Absorption Spectra of Dicarbonyl Rhodium(l) Complexes. M. L. Rodgers, J. D. Heise —124. Emission Studies of Selected Platinum(ll) Terpyridyl Complexes. E. M. Stacy, D. R. McMillin
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September 18, 1989 C&EN
Presiding
9:00—133. Synthesis and Photochemistry of 1,2-Dimesityltetra-methyldisilane. J. B. Wilking, P. P. Gaspar —134. Synthesis and Photochemistry of Cyclopentadienyl-dicarbonyliron Trisilanes. S. Gonzalez, P. P. Gaspar —135. Metalloderivatives of Hexaborane(10). L. Barton, S. G. Shore, D. L. Denton, G. G. Outterson, O. Hollander, J. Ragaini —136. Synthetic Utility of Low-Valent Titanium Aryloxides. J. E. Hill, I. P. Rothwell, P. E. Fanwick —137. Reactions of Trimethylphosphine with Re2H8(PMe3)4. Isolation and Characterization of the Intermediate Re2H6(PMe3)5. K. E. Meyer, D. R. Root, R. A. Walton —138. Protonation Reactions of the Heptahydride Complex ReH7(PPh3)2 with Hydroxypyridines. Formation of Complexes of Rhenium(lll), (IV), and (V). M. Leeaphon, P. E. Fanwick, R. A. Walton —139. Redox Properties of Ru(OEP)Arn Complexes. J. W. Seyler, C. R. Leidner —140. Synthesis of r/5-C5H5(CO)Ru [C(0)CH3][C(OH)CH3]. D. Afzal, A. James — 1 4 1 . Reactions between Metal Ethynyls and Metal Electrophiles To Stabilize New Heterobimetallic Ethyndiyl Complexes. K. G. Frank, J. P. Selegue —142. Synthesis, Structure, and Reactivity of r?-Pentadieynyl-Fe(PR3)n+X~(n = 2, 3, 4; X = BF 4 ", PF 6 "). R. J. Wlttenbrlnk, J. R. Bleeke —143. Synthesis and Reactivity of a Stable Metallabenzene. J. R. Bleeke, Y.-F. Xie, W.-J. Peng, M. Y. Chiang —144. Structure and Reactivity of Dimeric Rhodium and Iridium Complexes with Bridging 2-(6-Methylpyridyl)Methyl and 2,6-Diphenylphenoxide. D. E. Chebi, P. E. Fanwick, I. P. Rothwell —145. Synthesis of Amido and Oxo Complexes of Rhodium. D. Hoard, C. Barnes, P. Sharp
M. Harmata, Presiding 2:00—152. Novel Heterocycles Based on 3Azatricyclo[5.3.1.0 4 9 ]-Undecane. R. Bishop, I. Bong, A. Ung —153. Electrochemical Amide Oxidations: a Novel Approach to the Construction of a Rigid Pro-X Building Block. S. L. Rothfus, K. D. Moeller —154. Regiospecific Synthesis of Ortho-AIkenyl Anilines. B. Herron, M. Harmata —155. Catalytic Iron-Medicated Ene Carbocyclizations: Recent Mechanistic and Preparative Considerations. J. M. Takacs, B. E. Takacs, Y-C. Myoung, J. J. Weidner, R. Chidabaran —156. Double Diastereoselection in Amidomercuration Cyclizations: the Stereoselective Preparation of N-Acyl Pyrrolidines and Piperidines. M. A. Helle, J. M. Takacs —157. Stereocontrolled Formation of 3Amino-2-azetidinones. E. Akgun, G. I. Georg —158. Asymmetric Synthesis of a-Alkylated, a-Amino Acids. X. Guan, G. I. Georg —159. Intramolecular Anodic Olefin Coupling Reactions: Fundamental Studies Concerning the Nature of the Initiating and Terminating Groups. K. Moeller, C. Hudson, S. Keith, L. V. Tinao —160. Oxidative Organic Electrochemistry: a New Method of Ring Construction by Anodic Carbon-Carbon Bond Formation. M. R. Marzabadi, K. D. Moeller, D. G. New — 1 6 1 . Palladium-Catalyzed Synthesis of /?Substituted Enones. J. K. Kling, C. M. Hettrick, W. J. Scott —162. Oxy-hexatriene Cyclization of Dienones and the Total Synthesis of Adrenosterone. C. M. Hettrick, W. J. Scott —163. Stereoselective Catalytic PalladiumMediated Carbocyclizations of Tetraenes. J. Zhu, J. M. Takacs, S. Chandramouli —164. Reactions of Aromatic Iodides with Nucleic Acid Components. E. Voelk, M. S. Platz —165. Reaction of 1,2,3-Oxadiazolinium Ions and Their Analogs with Amines. E. Erb, R. N. Loeppky —166. Thiol Oxidation by Alkoxydiazenium and 3-Alkyl-1,2,3-Oxadiazolinium Ions. A. Lahiri, R. N. Loeppky —167. Kinetics and Mechanisms of Nitrosation of 2-Ethylhexyl 4-A/,/V-Dimethylaminobenzoate, "Padimate-O." R. Hastings, R. N. Loeppky, J. Sandbothe, D. Heller
—168. Properties of Nitrosaminomethyl Radicals. E. Li, R. N. Loeppky —169. Design and Synthesis of Cyclodextrino-Metallic Catalyst. H. Jo, V. T. D'Souza —170. Study of Reaction Products of Cyclodextrins and Aromatic Diazonium Salts. H. Ye, V. T. D'Souza — 1 7 1 . Synthetic Approaches to 3,3-Dimethylbutyldithio-A/.AA-Dimethyl Carbamate: a Potential Inhibitor of Acetylcholine. A. M. Nyanda, D. M. Quinn —172. Phenylazocatechols as a Model for an Internal Redox System. C. Marzabadi, V. T. D'Souza —173. Design and Synthetic Approach to a Potential Bioreductive Alkylator of DNA Based on the Minor Groove Binding Drug Anthramycin. M. P. Schmitt, J. S. Taylor —174. Mechanistic Study of 8-azidoadenine as a Probe for Photoaffinity Labeling. S. Rai, E. Chang, E. Leyva, M. S. Platz —175. Prediction of Sign of Rotation vs. Absolute Configuration in Mobile Molecules. C. A. Kingsbury —176. Selective GC/MIPD Detection of Pentafluorobenzyl Derivatives of Carboxylic Acids. J. H. Brill, J. P. McCormick —177. Incorporation of 1 8 0 2 into the Anhydride Moiety of Cantharidin. J. P. McCormick, J. Brill, M. d. C. Mustiga, Y. Yuan, S. Miller, J. E. Carrel —178. Novel Modified Trichothecenes Isolated from Fusarium sambucinum. D. R. Sanson, D. G. Corley, G. Rottinghaus, M. S. Tempesta —179. New Alkaloids from Peniciliium oxalicum. R. P. Ubillas, M. S. Tempesta, G. E. Rottinghaus, C. L. Barnes —180. Examinations of Capto-Dative Effects in Carbon-Centered Radicals. M. J. Bausch, R. Gostowsky, V. Prasad — 1 8 1 . C-H BDE Determination for Phenalene and Benzanthrene. M. J. Bausch, G. Jirka
FRIDAY MORNING Posters will be displayed from 9 AM to noon. Presenters will be in attendance from 11 AM to noon.
South Exhibition Hall Poster Session B
W. H. Bunnelle, Presiding 9:00—182. Kinetics and Spectroscopy of Dimethylgermylene Produced in the Photolysis of Dimethylphenyltrimethyl-silylgermane. V. Maloney, P. P. Gaspar, K. Bobbitt —183. Generation and Reactions of Diadamantylsilylene. D. H. Pae, P. P. Gaspar —184. Vinylsiiiranes. K. L. Bobbitt, P. P. Gaspar —185. Reaction of Electron-rich Heterocycles with Electrophiles, Formylation of Indoles via Thioacetalation. E. Akgun, M. Tunali —186. Some Nucleophilic Reactions of Lithio 1-Thiophenyl-3,3-Dialkylallenes. S. Kolodzlej, R. E. K. Winter, W. Shiang —187. Preparation and Functional ization of a Vinylic Copper Reagent Formed by the syn Addiction of Difluoro(diethoxy-phosphinyl)methylcopper to Hexafluoro-2-butyne. R. D. Guneratne, D. J. Burton —188. Substituent Effects in the Arylphosphate-Arylphosphonate Rearrangement. D. A. Casteel, P. S. Prasad —189. Studies Directed toward the Synthesis of 1-Phospha-2,10-Dioxabicyclo[4.4.0]decane-1-Oxide. A. G. Sommese, S. E. Cremer —190. Photochemistry of a,/?-Unsaturated Ketones in the Presence of Triethylamine: Photopinnacol Formation and Photoreduction of Enones. R. Singh, Y-H. Park, R. S. Givens
— 1 9 1 . Photochemistry of Phosphate Monoand Di-Esters: Photoprotecting Groups for Alcohols. P. S. Athey, R. S. Givens —192. Reactions of Fluorinated Aromatic Nitrenes. E. Leyva, D. Munoz, M. S. Platz —193. Decomposition of /V-Chloro-/V-acylO-alkylhydroxylamines. M. W. Mosher —194. Palladium-Catalyzed Reductive Dehalogenations of Arylhalides with Amines and with Alkoxides. H. A. Dieck, D. L. Hood, V. A. Moeller, C. Ikpoema, H. A. Mahmoud, J. V. Thomas —195. Organic Compounds from Reactions of Transition-Metal Carbonyls with Organolithium Reagents. S. Dostal Jr., H. A. Dieck, C. E. Q. Hanau, D. J. Escher, M. J. Woofter —196. Stereochemistry of Nucleophilic Ring Opening of 6,6-Dimethyl-2-Phenyl5,7-Dioxaspiro [2,5] Octane-4,8-Dione. S. Shiroor, M. A. McKinney —197. Nucleophilic Cleavage of Spiroactived Cyclopropanes. Rates and Equilibria. S. Templin, M. A. McKinney —198. Metalation-lnduced Rearrangement of Diaryl Phenylphosphonates to Bis(2-Hydroxyaryl) Phenyl Phosphine Oxides. B. Dhawan, D. Redmore —199. Stereochemistry of Ozonide Formation. T. A. Isbell, W. H. Bunnelle —200. Primary Ozonide Fragmentation in Cyclic Vinyl Ethers. A Study of Regioselectivity. B. E. Segelstein, W. H. Bunnelle — 2 0 1 . Mechanistic Studies Involving the Oxygen Transfer Capabilities of a 3-Alkoxy Ozonide. C. G. Shevlin, W. H. Bunnelle —202. Enolate Anion Rearrangements of Cyclohexadiene Carboxylates. Formation of a Bicyclo[3.1.0]hexene. D. L. Garin, F. Homan —203. Concomitant Oxidative and Nonoxidative Decarboxylations: a Mechanistic Study of the NTA-Ce(IV) Reaction. S. B. Hanna, J. X. Ye, C. K. Kenesey —204. Reduction-Acylation: Halide Formation. J. K. Wood, T. Walker —205. Estimation of Evaporation Enthalpies of Organic Compounds. D. G. Hesse, J. S. Chickos —206. Acidities and Bond Dissociation Energies for Substituted Urazoles. M. J. Bausch, B. David, P. Dombrolski —207. Acid-Base and Redox Chemistry of 9- and 10-Substituted Anthracenes. M. J. Bausch, C. Guadalupe, D. Selmarten, B. Peterson
PHYSICAL CHEMISTRY H. H. Harris, Organizer THURSDAY MORNING Posters will be displayed from 9 AM to noon. Presenters will be in attendance from 11 AM to noon.
South Exhibition Hall i Poster Session A D. Holten,
Presiding
9:00—208. Intracavity Laser Spectroscopy in the Analysis of Gaseous Intermediates in Chemical Vapor Deposition Processes. J. J. O'Brien, G. H. Atkinson —209. Circularly Polarized Excitation and Circularly Polarized Luminescence as Probes of Metal-Ion Site Differences in Calmodulin. N. Coruh, J. P. Riehl —210. Determination of Surface Hydrogen Coverage during Silicon Epitaxy on Si(100). C. M. Greenlief, M. Liehr, M. Offenberg, S. R. Kasi — 2 1 1 . V-T Energy Relaxation from Highly Excited Polyatomic Molecules: Fluorinated Hydrocarbons (C3-C8). B. H. Song, D. C. Tardy —212. Photochemical Generation of Hydrogen from Alcohols Using Semiconductor Catalysts and Dye Sensitizers. N. A. Mohdzabidi, T. F. Thomas —213. Picosecond Dynamics of Photoexcited Ce(IV) Porphyrin Dimers. O. Bilsel, J. Rodriguez, D. Holten
—214. Temperature-Dependent Decay Kinetics of the Intradimer Charge Transfer State in Photosynthetic Reaction Centers from the His M200 ->Leu Mutant of Rhodobacter capsulatus. L. M. McDowell, C. Kirmaier, D. Holten —215. Time-Resolved Ligand Photodissociation from Nickel Porphyrins. J. Rodriguez, D. Holten —216. New Synthetic Metal Precursor: Dimethyl-tetrathiotetracene and Related Compounds. M. Singh, M. T. Jones, T. Maruo —217. Diffusion Thermoeffect in Gases (the Dufour Effect). A. Boushehri, A. Massoumi, A. K. Bordbar —218. High-Temperature Superconductors Studied with Knudsen Cell Mass Spectrometry. D. L. Myers, P. G. Wahlbeck —219. Carbonate Decomposition in the Syntheses of High-Temperature Superconductors. R. R. Richards, P. G. Wahlbeck —220. Thermodynamic Properties of Mixed Electrolyte Solutions of Constant Ionic Strength. D. A. Johnson, R. N. Roy, L. N. Roy — 2 2 1 . Thermodynamic Studies of Aqueous Mixtures of Borates with Metal Chlorides. R. N. Roy, L. N. Roy, D. A. Johnson —222. Statistical Analysis of Activity Coefficient Data of Mixed Electrolyte Solutions Using Hamed's Rule. L. N. Roy, R. N. Roy, D. A. Johnson
POLYMER CHEMISTRY
UNDERGRADUATE RESEARCH
F. D. Blum, Organizer, Presiding THURSDAY AFTERNOON Posters will be displayed from 2 to 5 PM. Presenters will *>e in attendance from 4 to 5 PM. South Exhibition Hall
J. H. Forsberg, Organizer, Presiding THURSDAY AFTERNOON Posters will be displayed from 2 to 5 PM. Presenters will be in attendance from 4 to 5 PM. South Exhibition Hall
Poster Session
2:00—238. Conformational and Configuration-Dependent Properties of Polysilanes and Polygermanes. W. J. Welsh, W. D. Johnson —239. Measurement of Refractive Index of Solid Transparent Polymers. R. Six, K. Weaver, J. O. Stoffer —240. Correlation of Corrosion Resistance of Protective Coatings with Adhesion and Permeability of Oxygen. W. J. T. Yu, J. Stoffer, K. Dean — 2 4 1 . Deuterium NMR Study of Molecular Motion of Amino-Functional Silane in Condensed Polymer. H-j. Kang, F. D. Blum —242. Ultrasonic Dispersion of Pigments. Y. Kim, J. O. Stoffer FRIDAY MORNING —243. NMR Study of Lead Magnesium Niobate Polymer Precursors. M. S. Smith, F. Posters will be displayed from 9 AM to D. Blum noon. Presenters will be in attendance from —244. Self-Diffusion Coefficients of Sol11 AM to noon. vents in Polystyrene Solutions. R. A. Waggoner, F. D. Blum —245. Solvent Interactions of AAPropanol or South Exhibition Hall Dimethoxyethane/Water Mixtures with 2Hydroxyethyl Methacrylate Based HydroPoster Session B gels. W. Liu, N. D. Lian, M. R. Van De Mark —246. Synthesis of Protein Bound PolymerW. J. Welsh, Presiding ized Vesicles Containing Fluorescence 9:00—223. NMR Studies of Group VI Metal Probes. C. Y. Guo, R. R. Shankar, J. E. Subcarbonyls Supported in Zeolites. W. Kuo M. Shirley, C. A. Powers, J. S. Frye —247. Polymerization in Lamellar Liquid —224. Characterization of Adsorbed DicarCrystals with a Polymerizable Surfactant. bonyls of Rh. P. F. Molitor, T. A. Apple Y. J. Uang, F. D. Blum —225. Analysis of Black Coral by 13C NMR. —248. Synthesis and Properties of PerfluorS. M. Holl, W. M. Goldberg, J. Schaefer oalkyl Polystyrenes. H. Sawada, M. Mi—226. Characterization of Cross-Links in tani, M. Nakayama, M. Yoshida, N. KamiTobacco Hornworm Exuviae Using 13C gata and 15N REDOR NMR. A. M. Christensen, —249. Synthesis and Characterization of K. J. Kramer, J. Schaefer Metal Complexes of Carbonate Polymers —227. Characterization of the Interfacial Containing 2,2'-Biimidazole. I. Y. Cho, H. Region of Polystyrene-Polycarbonate L. Collier Blends by Dynamic Nuclear Polariza- —250. New Disiloxane-Containing Polyation 13C CPMAS NMR. M. Afeworki, J. mide-lmides. R. M. Shaltout, S. S. Mohite, Schaefer C. C. Thompson —228. Characterization of Cross-Linking in — 2 5 1 . Synthesis of New Potentially CorroPeptidoglycan of Bacillus subtilis. Y. Pan, sion Inhibitory Linear Aliphatic PolysulT. M. Forrest, G. E. Wilson Jr., J. Schaefer fides. E. Sianawati, M. R. Van De Mark —229. Correlation of Ring-Flips in Bis- —252. Palladium-Catalyzed Modification of phenol-A Polycarbonate. P. L. Lee, J. Polystyrene. K. Yuan, W. J. Scott Schaefer —253. Preparation and Characterization of —230. Correlation Function Diagnosis for Biimidazole-Containing Polyesters. R. L. the Onset of Classical Chaos in HCN and Lister, H. L. Collier HCCH. Y. J. Cho, H. H. Harris —254. Polymerization of Acetylenes Con—231. Studies of the Antineoplastic Antifotaining Electron-Withdrawing Groups. J. late Methotrexate (MTX) and Its Parent M. Wilbur Jr. Substrate Folic Acid (FA). L. McMillan, W. —255. Polymerization of Ethynyl Phenyl SulJ. Welsh fone. J. M. Wilbur Jr., F. D. Blum, R. J. —232. Molecular Orbital Studies of Model Gambogi Papain-Substrate Complexes. G. Duncan, —256. Quantitative Analysis of the MonoW. J. Welsh mer Products Formed on the Hydrolysis of —233. Conformational Studies of AnticanPoly(esters) and Poly(anhydrides). H. T. cer Drugs: Structural and Electronic PropWang, R. J. Linhardt, D. R. Flanagan, E. erties of s-Triazines. W. J. Welsh Schmitt —234. Synthesis, Crystal Structure Analysis —257. Polyaniline on Glass. T. Bone, J. O. and Molecular Modeling Studies of Novel Stoffer Heteroarotinoids. W. J. Welsh, V. Cody, S. —258. Free-Volume Microstructure of PolyN. Rajadhyaksha, K. D. Berlin mers Probed by Positron Annihilation —235. Ab-initio Study of the Complex beSpectroscopy. Y. C. Jean, H. Nakanishi, tween Sulfur Dioxide and Ammonia. S. T. C. Sandreczki Chattopadhyay, P. L. M. Plummer —236. Test of MOPAC-PM3 for HydrogenBonded Clusters. A. M. Turner, P. L. M. Plummer —237. Ab-initio Optimized Energies and Shapes of HBO, HBS, HAIO, and HAIS. E. R. Talaty, M. E. Zandler
Poster Session 2:00—259. Why Does 3H Incorporate into ycarboxy GLU but not into /3-OH ASP? Biochemical and Molecular Modeling Studies. P. Ritter, W. J. Welsh, S. P. Bajaj —260. Conformational Energy Calculations on a Series of Polyoxetanes. Q. Abbassi, W. J. Welsh — 2 6 1 . Determination of the Apparent Volumes of Sodium Chloride and the Surfactant Sodium Dodecyl Sulfate (SDDS) at 5 °C, 25 °C, and 45 °C. S. Rice, R. N. Roy, D. A. Johnson —262. Activity Coefficient for the System HCI + ThCI4 + H 2 0 at Various Temperatures. K. Smith, R. N. Roy, L. N. Roy, D. A. Johnson —263. Thermodynamic Ionization Constants of the Physiological Buffers Dipso and Hepso at 25 °C and 37 °C. E. L. Breithaupt, R. N. Roy, L. N. Roy, D. A. Johnson —264. Estimation of the Liquid Junction Potential for the Physiological Buffer MOPSO at 25 °C. K. Vogel, R. N. Roy, D. A. Johnson —265. Electron Donor-Acceptor Complexes /Of Substituted Furans. S. Strand, T. Mitzel, S. B. Gingerich —266. Anodic Amide Oxidations in the Presence of Mono-, Di-, and Trialkoxy Phenyl Rings. Evidence for an Intramolecular Electron Transfer Mechanism. P. W. Wang, K. Moeller, S. Tarazi, M. R. Marzabadi —267. Synthesis and Photochemistry of a New Stannylene Precursor. S. T. Beatty, K. L. Bobbitt, P. P. Gaspar —268. Voltammetric Study of the Oxidation of 9-Cyclopropylanthracene. K. Hathaway, J. M. Tanko —269. Electron Spin Resonance Studies of the Reorientational Motion of the Bis(maleonitriledithiolato)nickel Annion Radical in Polar Solvents. A. B. Joern, E. M. Thurman, S. L. Austermann, T. L. Stemmler, B. A. Kowert —270. Kinetics of the Exchange Reaction of Ethylenediamine with Tetrakis(ethylenediamine)lanthanide(lll) Complexes. S. R. Aubuchon, A. T. Timperman, A. M. Carter, J. H. Forsberg — 2 7 1 . Synthesis of Specific Alkanes Using Lithium Dialkylcuprates. Y. Wacek, K. Stretch, L. L. Lambing, P. Hayward, D. Johnson —272. New Polyimides from A/,A/'-Dicarboethoxypyromellitic Diimide via Interfacial Polycondensation. R. D. Bradshaw, S. S. Mohite —273. Synthesis, Thermal Stability, and Electrical Conductivity of New Poly(bisaryldiaminosulphoxides). B. D. Deason, S. S. Mohite, R. E. Giedd —274. Photoreduction of 1-Carvone in the Presence of Triethyl Amine: the Origin of the 7-Hydrogen. G. Jones, R. S. Givens, R. Singh —275. Preparation and Properties of Dimeric Rh(l) Complexes with Highly Strained Polycyclic Dienes. J. D. Heise, M. L. Rodgers —276. Electrocatalytic Reduction of Fumaronitrile by Disubstituted Bipyridinium Ions. T. K. Westhoff, D. A. Van Galen —277. Sensitive Electrochemical Method for the Analysis of Organic and Metallic Constituents of Gunshot Residue. E. W. Bohannan, D. A. Van Galen —278. MM2 Parameters from Ab-initio Calculations. M. A. Rolseth, R. A. Kok
September 18, 1989 C&EN
43
