Intramolecular hydrogen bond investigations in some Schiff bases using C-C and N-C coupling constants

被引：21

作者：

Schilf, W ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Organ Chem, PL-01224 Warsaw, Poland

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2004年 / 689卷 / 03期

关键词：

Schiff bases; nitrogen-carbon and carbon-carbon coupling constants; intramolecular hydrogen bond;

D O I：

10.1016/j.molstruc.2003.10.043

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Five Schiff bases, derived from substituted salicylaldehydes and methylamine, have been investigated by analysis of C-C and N-C coupling constants to check potential of those spectral parameters in intramolecular hydrogen bonds research. Two remaining imines, without OH substituent in position 2, were applied as model compounds for imine structure. The one-bond C-C couplings in aromatic ring provide valuable information about bond orders and correlate with bond lengths obtained by X-ray. The one-bond heteronuclear C-N couplings can be used very easily to distinguish between in-tine and enamine form of Schiff bases. Additionally the two-bond N-C couplings supply interesting information about geometry of the investigated molecules. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：245 / 249

页数：5

共 37 条

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