C-13 CROSS-POLARIZATION MAGIC ANGLE SPINNING AND H-2 NMR-STUDIES OF THE STRUCTURE AND DYNAMICS OF THE (DEOXYCHOLIC ACID)2-FERROCENE INCLUSION COMPOUND

被引：11

作者：

HEYES, SJ

DOBSON, CM

机构：

[1] Inorganic Chemistry Laboratory, University of Oxford, Oxford, OX1 3QR, South Parks Road

来源：

MAGNETIC RESONANCE IN CHEMISTRY | 1990年 / 28卷

关键词：

!sup]13[!/sup]C CP/MAS NMR; !sup]2[!/sup]H NMR; (Deoxycholic acid)[!sub]2[!/sub]‐ferrocene; Dynamics; Inclusion compounds; Libration; Relaxation data; Reorientation;

D O I：

10.1002/mrc.1260281309

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The channel‐type inclusion complex, (deoxycholic acid)2–ferrocene [(DCA)2–;ferrocene], was studied by 13C cross‐polarization/magic angle spinning NMR spectroscopy. The spectra indicate that two different DCA molecules are present in the crystalline structure. Relaxation data indicate a relatively restricted degree of reorientational freedom of the included ferrocene molecules. 2H NMR spectra of the inclusion complex with perdeuterated ferrocene reveal rapid, anisotropic librations of the principal axes of the ferrocene molecules about their mean positions, varying from <ca. ± 1° at 160 K to ca. ± 28° at 350 K. The anisotropic, librational nature of this molecular reorientation may be rationalized in terms of the packing features of the sheet‐like nature of the structures of such deoxycholic acid compounds. Copyright © 1990 John Wiley & Sons, Ltd.

引用

页码：S37 / S46

页数：10

共 32 条

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