The effect of the substituents in the malonate anion and the solvent molecules on the structures of novel coordination polymers [Li2VO(R2mal)2] n

Abstract

Reactions of vanadyl sulfate (VOSO4∙3H2O) with dimethylmalonic (H2Me2mal = = C3H6(CO2H)2), cyclobutane-1,1-dicarboxylic (H2cbdc = C4H6(CO2H)2), or butylmalonic acid (H2Bumal = C4H10(CO2H)2) and Li2CO3 in a ratio of 1: 2: 2 afforded novel coordination polymers of similar compositions ([Li2(VO)(Me2mal)2]n (1), [Li2(VO)(Me2mal)2(EtOH)-(H2O)]n (2), [Li4(VO)2(cbdc)4(H2O)7]n (3), and [Li2(VO)(Bumal)2(H2O)5.5]n (4)) but different structures. The crystal structures of the compounds containing the Me2mal2– and Bumal2– anions depend on the solvent nature.