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

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Title Transition-metal-saccharide chemistry: Synthesis and characterisation of D-galactose, D-fructose, D-glucose, D-xylose, D-ribose, and maltose complexes of Mn(II)
 
Creator BANDWAR, RP
RAO, CP
 
Subject aqueous-solution
structural characterization
carbohydrate complexes
dimethyl-sulfoxide
sugar interaction
hg(ii) complexes
ion binding
amino-acids
coordination
copper(ii)
mn(ii) complexes
monosaccharide-mn(ii) complexes
maltose-mn(ii) complex
 
Description 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 .
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-27T04:25:54Z
2011-12-26T12:53:35Z
2011-12-27T05:40:06Z
2011-07-27T04:25:54Z
2011-12-26T12:53:35Z
2011-12-27T05:40:06Z
1996
 
Type Article
 
Identifier CARBOHYDRATE RESEARCH, 287(2), 157-168
0008-6215
http://dx.doi.org/10.1016/0008-6215(96)00074-2
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7114
http://hdl.handle.net/10054/7114
 
Language en