Poly[bis(μ6-benzene-1,3,5-tricarboxylato-κ7O1,O1′:O1′:O3:O3′:O5:O5′)tetrakis(dimethylformamide-κO)trimagnesium(II)]

Abstract

The asymmetric unit of the polymeric title compound, [Mg3(C9H3O6)2(C3H7NO)4]n, contains three MgII ions bridged by carboxylate O atoms from two fully deprotonated benzene-1,3,5-tricarboxylate (BTC) trianions and four metal-coordinated dimethylformamide (DMF) molecules. One MgII ion is octahedrally coordinated by six carboxylate O atoms. The other two cations are each octahedrally coordinated by four carboxylate O atoms and two O atoms donated by two DMF molecules: in one, the DMF molecules are cis and in the other they are trans. The three MgII octahedra form clusters, which are bridged by the BTC trianions, generating a three-dimensional structure.