TRANSITION-METAL SACCHARIDE CHEMISTRY - D-GLUCOSE COMPLEXES OF MN(II), CO(II), NI(II), CU(II) AND ZN(II)

Metal complexes of D-glucose (D-Glc) from large cation containing dibr omo-dichloro salts of dipositive metals [NEt(4)](2)[MBr(2)Cl(2)] (M = Mn, Co, Ni, Cu and Zn) and the disodium salt of glucose were synthesiz ed from a MeOH:MeCN mixture. The complexes were characterized by UV-vi s absorption, circular dichroism, IR and proton magnetic resonance spe ctroscopies, and by elemental analysis, and were found to be Na[M(D-Gl c)(OMe)Cl]. Cyclic voltammetric studies of these complexes, in the aci dic to neutral pH range, indicated no dissociation, even in highly aci dic conditions.