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Heterodimetallic germanium(IV) complex structures with transition metals

The hydrothermal synthesis and structural characterization of a number of complex compounds containing the divalent tris(oxalato-O,O¢)germanate anion, [Ge(C2O4)3]2-, or the neutral bis(oxalate-O,O¢)germanium fragment, [Ge(C2O4)2], with transition-metal (M) cationic complexes of 1,10¢-phenanthroline (phen) is reported: [M(phen)3]- [Ge(C2O4)3]âxH2O [where M2+ ) Cu2+ (1a and 1b), Fe2+ (2a and 2b), Ni2+ (3), Co2+ (...