References
Figure 7. 1 3 C C P / M A S spectrum of an HY zeolite sample onto which propene2- 1 3 C had been adsorbed at room t e m perature. A resonance attributable to carbocation centers is visible at 250 p p m . Spinning sidebands are de noted by ssb. (Adapted from Reference 25.)
m o r e i n t e r e s t i n g a p p l i c a t i o n s of t h e V T M A S N M R t e c h n i q u e will p r o b e catalytic m a t e r i a l s a n d reactive surface species. T h i s f u t u r e work, like t h a t which h a s a l r e a d y been d o n e , will re sult from a h a r m o n i o u s c o m b i n a t i o n of c h e m i s t r y a n d chemical i n s t r u m e n t a tion. This article was made possible by support from the National Science Foundation (grant CHE8700667).
(1) Yannoni, C. S. Ace. Chem. Res. 1982, IS, 201-08. (2) Maciel, G. E. Science 1984,226, 282-88. (3) Gerstein, B. C. Anal. Chem. 1983, 55, 781 A-790 A. (4) Gerstein, B. C. Anal. Chem. 1983, 55, 899 A-907 A (5) Lyerla, J. R.; Yannoni, C. S.; Fyfe, C. A. Ace. Chem. Res. 1982,15, 208-16. (6) Pines, Α.; Gibby, M. G.; Waugh, J. S. J. Chem. Phys. 1973,59, 569-90. (7) Gay,ID.J.Magn.Reson. 1984,58,41320. (8) Fyfe, C. Α.; Mossbrugger, H.; Yannoni, C. S. J. Magn. Reson. 1979, 36, 61-68. (9) Kuhns, P.; Gonen, O.; Waugh, J. J. Magn. Reson. 1987, 72, 548-50. (10) Facelli, J. C ; Grant, D. M ; Michl, J. Ace. Chem. Res. 1987, 20, 152-58. (11) Macho, V.; Kendrick, P.; Yannoni, C. S. J. Magn. Reson. 1983, 52, 450-56. (12) Yannoni, C. S.; Clarke, T. C ; Ken drick, R. D.; Macho, V.; Miller, R. D.; Myhre, P. C. Mol. Cryst. Liq. Cryst. 1983, 96, 305-17. (13) Hackmann, Α.; Seidel, H.; Kendrick, R. D.; Myhre, P. C.; Yannoni, C. S., sub mitted for publication in J. Magn. Reson. (14) Haw, J. F.; Campbell, G. C ; Crosby, R. C. Anal. Chem. 1986, 58, 3172-77. (15) Hoult, D. I.; Richards, R. E. J. Magn. Reson. 1976,24, 71-85. (16) Crosby, R. C ; Haw, J. F.; Lewis, D., submitted for publication in Anal. Chem. (17) Hexam, J. G.; Frey, M. H.; Opella, S. J. J. Chem. Phys. 1982, 77, 3847. (18) Haw, J. F.; Crook, R. A ; Crosby, R. C. J. Magn. Reson. 1986,66,551-54. (19) Crosby, R. C ; Haw, J. F. Macromole-
Si
T
Analytical Products from the Organosilicon Experts!
his book is the first to offer the scientist a concise description of the different roles and uses of Ordered Media ordered media in separation science. The past in Chemical decade has seen rapid Separations advances in the utilization of surfactant normal and reversed micelles, surfactant vesicles, and cyclodextrins in separation science. This volume will introduce you to the different types of ordered media, and familiarize you with their use in various separation science techniques. Just a few of the areas covered include · micellar liquid chromatography · micellar-enhanced ultrafiltration · micellar electrokinetic capillary chromatography • extraction of byproducts with reversed micelles · utilization of cyclodextrines as stationary and/or mobil-phase components in chromatography. If you're involved in chromatography, separation science, analytical or micellar chemistry, or bioseparations, you'll find this book the one source of information you must have to keep current in this rapidly expanding area of science. Willie A. Hinze, and Daniel W. Armstrong, Editors
Petrarch Systems has a large selection of analytical products for your chemical applications: molecular weight standards tor use as reference materials D liquid silicone polymer Retractive Index (Rl) standards for use in microscopy • viscosity standards • NMR standards If you would like to receive more information on our analytical standards or a FREE copy of our Silicon Compounds Register and Review Catalog contact us today.
PETRARCH SYSTEMS SILANES
hüls
HÜLS AMERICA INC.
ACS Symposium Series No. 342 LC 87-13563 ISBN 0-8412-1402-6
2570 Pearl Buck Road, Bristol, PA 19007, (215) 781-9255. In Europe contact: ABCR Gmbh & Co., Schoemperlenstr. 5 0-7500 Karlsruhe 21. West Germany (0) 721-563088
or CALL TOLL FREE CIRCLE 67 ON READER SERVICE CARD ·
ANALYTICAL
CHEMISTRY,
V O L . 6 0 , N O . 9, M A Y
279 pages (1987) Clothbound US & Canada $54.95 Export S6S.95
Order from: American Chemical Society, Distribution Office Dept. 59 1155 Sixteenth St., N.W., Washington, DC 2 0 0 3 6
Huls-13-SU
570 A
James F. Haw received his Ph.D. from Virginia Tech in 1982. He is currently an assistant professor in the Depart ment of Chemistry at Texas A&M University. His research interests in clude the development of solid-state NMR instrumentation and its appli cation to problems in heterogeneous catalysis, polymer chemistry, and magnetic materials research.
Ordered Media in Chemical Separations
28.086
14
cules 1987,20,2324-26. (20) Rothwell, W. P.; Waugh, J. S. J. Chem. Phys. 1981, 74, 2721-32. (21) Haw, J. F.; Campbell, G. C. J. Magn. Reson. 1986,66, 558-61. (22) Campbell, G. C ; Crosby, R. C ; Haw, J. F. J. Magn. Reson. 1986, 69, 191-95. (23) Campbell, G. C ; Haw, J. F., submitted for publication in Inorg. Chem. (24) Yannoni, C. S.; Reisenauer, H. P.; Mair, G. J. Am. Chem. Soc., 1983, 105, 6181. (25) Zardkoohi, M.; Haw, J. F.; Lunsford, J. H. J. Am. Chem. Soc. 1987,109, 5278-80. (26) Haw, J. F.; Johnson, N. A. Anal. Chem. 1986,58, 3254-56.
1,
1988
800-227-5558
and use your credit card!
