镱（III）与硫酸软骨素和软骨素结合的13C核磁共振研究。

A 13C-n.m.r. study of the binding of ytterbium(III) to chondroitin sulphate and chondroitin.

作者信息

Balt S, de Bolster M W, Visser-Luirink G

出版信息

Carbohydr Res. 1983 Sep 16;121:1-11. doi: 10.1016/0008-6215(83)84001-4.

Abstract

13C-N.m.r. spectra of chondroitin 4- and 6-sulphates, chondroitin, beta-D-glucuronate, and beta-D-glucose 6-sulphate were measured in the presence of ytterbium(III) in deuterium oxide. The structure of the ytterbium-polysaccharide compounds in solution was found to be similar to that reported for calcium chondroitin 4-sulphate in a stretched film. In the glucuronate complex, Yb(III) coordinates to the carboxylate group. For beta-D-glucose 6-sulphate, the ytterbium-induced shifts are too small to allow the structure to be determined.

摘要

在氧化氘中，于镱（III）存在的情况下测量了硫酸软骨素4-硫酸酯和6-硫酸酯、软骨素、β-D-葡萄糖醛酸和β-D-葡萄糖6-硫酸酯的13C核磁共振谱。发现溶液中镱-多糖化合物的结构与拉伸膜中硫酸软骨素4-硫酸钙所报道的结构相似。在葡萄糖醛酸络合物中，Yb（III）与羧基配位。对于β-D-葡萄糖6-硫酸酯，镱诱导的位移太小，无法确定其结构。