Transition-metal-saccharide chemistry: Synthesis and characterisation of D-galactose, D-fructose, D-glucose, D-xylose, D-ribose, and maltose complexes of Mn(II)

被引:27
|
作者
Bandwar, RP [1 ]
Rao, CP [1 ]
机构
[1] INDIAN INST TECHNOL, DEPT CHEM, BIOINORGAN LAB, BOMBAY 400076, MAHARASHTRA, INDIA
关键词
Mn(II) complexes; monosaccharide-Mn(II) complexes; maltose-Mn(II) complex;
D O I
10.1016/0008-6215(96)00074-2
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
Monosaccharide (D-Gal, D-Fru, D-Glc, D-Xyl, D-Rib) and disaccharide (D-Mal) complexes of Mn(II) were synthesised from non-aqueous solutions using [NEt(4)](2)[MnCl2Br2] and MnCl2 . 4H(2)O. The isolated and purified complexes were characterised by diffuse reflectance, FTIR, EPR, DTA, TGA, magnetic susceptibility, and cyclic voltammetry techniques. Synthesis from [NEt(4)](2)[MnCl2Br2] yielded dimeric complexes 1-3 and 9, and from MnCl2 . 4H(2)O it yielded trimeric complexes 4-8. These water-soluble complexes were found to be anionic with a Mn-to-saccharide ratio of 1:1 for monosaccharide complexes 1-8 and 2:1 for disaccharide complex 9. The complexes were found to be hydrolytically stable in solution at higher concentrations (greater than or equal to 4 mM), as studied by cyclic voltammetry. (C) 1996 Elsevier Science Ltd.
引用
收藏
页码:157 / 168
页数:12
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