The interaction of the vanadyl (IV) cation with chondroitin sulfate A
The interaction of the vanadyl (IV) cation with chondroitin sulfate A
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氧钒 (IV) 阳离子与硫酸软骨素 A 的相互作用
DOI：
10.1007/bf02990487
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发表时间：
1994
影响因子：
3.9
通讯作者：
E. Baran
中科院分区：
文献类型：
--
作者：
S. Etcheverry;P. A. Williams;E. Baran
采用电子吸收光谱法和红外光谱法研究了VO2+在不同ph值和配体与金属比高达6:1的水溶液中与多糖硫酸软骨素A （CSA）的相互作用。可以证明VO(CSA)2种的产生。建议通过羧酸基和-葡萄糖醛酸部分的糖苷氧进行配位。一些表征较差的固体VO/CSA配合物的红外光谱显示了相同的键合特征。在配体与金属比例较高时获得的初步结果表明配位行为不同。
The interaction of VO2+with the muchopolysaccharide chondroitin sulfate A (CSA) has been investigated by electron absorption spectroscopy and infrared measurements in aqueous solutions at different pH-values and ligand to metal ratios up to 6:1. The generation of a VO(CSA)2species could be demonstrated. Coordination of the oxocation through the carboxylate group and the glycosidic oxygen of thed-glucuronate moieties is suggested. Infrared spectra of some poorly characterized solid VO/CSA complexes point to the same bonding characteristics. Preliminary results obtained at higher ligand to metal ratios suggest a different coordination behavior.