TRANSITION-METAL SACCHARIDE CHEMISTRY - SYNTHESIS AND CHARACTERIZATION OF D-GLUCOSE, D-FRUCTOSE, D-GALACTOSE, D-XYLOSE, D-RIBOSE, AND MALTOSE COMPLEXES OF CO(II)
Rp. Bandwar et al., TRANSITION-METAL SACCHARIDE CHEMISTRY - SYNTHESIS AND CHARACTERIZATION OF D-GLUCOSE, D-FRUCTOSE, D-GALACTOSE, D-XYLOSE, D-RIBOSE, AND MALTOSE COMPLEXES OF CO(II), Carbohydrate research, 297(4), 1997, pp. 333-339
Monosaccharide (D-Glc, D-Fru, D-Gal, D-Xyl, and D-Rib) and disaccharid
e (Mall complexes of Co(II) were synthesised from nonaqueous solutions
using [NEt(4)](2)[CoCl2Br2] or CoCl2 . 6H(2)O and isolated in the sol
id state. The purified complexes were characterized by diffuse reflect
ance, aqueous solution absorbance, CD, FTIR, magnetic susceptibility,
EPR, and cyclic voltammetric studies. The complexes synthesised from [
NEt(4)](2)[CoCl2Br2] were found to be primarily dinuclear, whereas tho
se synthesised from CoCl2 . 6H(2)O were found to be di- or tetra-nucle
ar. The hydrolytic stability of the complexes followed a trend: D-Rib
> Mal > D-Glc > D-Xyl > D-Fru much greater than D-Gal. (C) 1997 Elsevi
er Science Ltd.