STUDY OF THE DYNAMICS OF FERROCENE ENCLATHRATED IN BETA-CYCLODEXTRINS AND GAMMA-CYCLODEXTRINS BY ONE-DIMENSIONAL SWITCHING-ANGLE SAMPLE SPINNING NMR-SPECTROSCOPY

被引：13

作者：

IMASHIRO, F

KUWAHARA, D

KITAZAKI, N

TERAO, T

机构：

[1] Department of Chemistry, Faculty of Science, Kyoto University, Kyoto

来源：

MAGNETIC RESONANCE IN CHEMISTRY | 1992年 / 30卷 / 08期

关键词：

C-13 SOLID-STATE NMR; CHEMICAL SHIFT ANISOTROPY; INCLUSION COMPOUNDS; FERROCENE; CYCLODEXTRIN;

D O I：

10.1002/mrc.1260300817

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

C-13 chemical shift powder patterns of ferrocene enclathrated in beta- and gamma-cyclodextrins were measured by one-dimensional switching-angle sample spinning NMR spectroscopy. The ferrocene molecules were found to precess with a precession angle of 69-degrees in gamma-cyclodextrin. In beta-cyclodextrin the ferrocene molecules I-III, in different motional states, were enclathrated with populations of 0.42, 0.32 and 0.26, respectively; ferrocene I is tightly enclathrated and rotates around its fivefold axis, whereas ferrocenes II and III precess with precession angles of 30-degrees and 42-degrees, respectively.

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页码：796 / 797

页数：2

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