Acetate groups as probes of the stereochemistry of carbohydrates: a vibrational circular dichroism study

被引：12

作者：

Bose, PK ^{[1
]}

Polavarapu, PL ^{[1
]}

机构：

[1] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA

来源：

CARBOHYDRATE RESEARCH | 1999年 / 322卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

carbohydrates; monosaccharides; pentaacetates; vibrational circular dichroism; infrared spectra; vibrational spectra; circular dichroism;

D O I：

10.1016/S0008-6215(99)00211-6

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Vibrational absorption and circular dichroism spectra of five different monosaccharide pentaacetates were measured. These spectra were found to be dominated by the contributions from the acetate groups. In the carbonyl region, alpha- and beta-D-glucose pentaacetates do not show measurable vibrational circular dichroism (VCD), but alpha- and beta-D-galactose pentaacetates and alpha-D-mannose pentaacetate show significant VCD, with mannose pentaacetate giving opposite signs to those of alpha- and beta-D-galactose pentaacetates. These observed features are interpreted to reflect the orientation of carbonyl groups around the carbohydrate ring. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：135 / 141

页数：7

共 29 条

[1] FOURIER-TRANSFORM INFRARED, VIBRATIONAL CIRCULAR-DICHROISM OF SUGARS - A SPECTRA-STRUCTURE CORRELATION [J].