DIBENZO-15-CROWN-5 ETHER AND ITS SODIUM THIOCYANATE COMPLEX - X-RAY CRYSTALLOGRAPHIC AND NMR-STUDIES IN THE SOLID-PHASE AND IN SOLUTION

被引：20

作者：

BUCHANAN, GW ^{[1
]}

MATHIAS, S ^{[1
]}

LEAR, Y ^{[1
]}

BENSIMON, C ^{[1
]}

机构：

[1] NATL RES COUNCIL CANADA,DIV CHEM,OTTAWA K1A 0R9,ONTARIO,CANADA

来源：

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 1991年 / 69卷 / 03期

关键词：

CROWN ETHERS; NMR; STEREOCHEMISTRY;

D O I：

10.1139/v91-062

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

For the title systems, single crystal X-ray data indicate the presence of totally asymmetric structures. These features are reflected in the multiplicity of resonances in the solid phase C-13 NMR spectra. Some of the C-13 chemical shift trends are analyzed in terms of torsional angle influences. In solution, resonance assignments have been made with the aid of 2D methods. Stereochemical inferences are drawn from NOESY spectra and H-1-H-1 couplings. Low temperature solution experiments indicate that conformational interconversions in both the free ligand and the NaNCS complex are rapid on the NMR timescale down to 163 K.

引用

页码：404 / 414

页数：11

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