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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-

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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

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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

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ANALYTICAL

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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

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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.

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