Coordination polymers of flexible tetracarboxylic acids with metal ions. II. Supramolecular assemblies of 5,5′-methylene- and 5,5′-(ethane-1,2-diyl)-bis(oxy)diisophthalic acidligands with d-transition metals†,10.1039/C0CE00268B

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Coordination polymers of flexible tetracarboxylic acids with metal ions. II. Supramolecular assemblies of 5,5′-methylene- and 5,5′-(ethane-1,2-diyl)-bis(oxy)diisophthalic acidligands with d-transition metals†

Anirban Karmakar,Israel Goldberg

CrystEngComm Pub Date : 10/11/2010 00:00:00 , DOI:10.1039/C0CE00268B

Abstract

This report evaluates the coordination patterns of the 5,5′-methylene-bis(oxy)diisophthalic acid and 5,5′-(ethane-1,2-diyl)-bis(oxy)diisophthalic acid ligands, bearing flexible spacers between the two isophthalic acid fragments, with a series of d-metal ions. Thirteen new binary and ternary (with additional bipyridyl components) hybrid organic–inorganic coordination-driven assemblies were investigated in detail by X-ray crystallography. In most cases they exhibit polymeric architectures of three-dimensional connectivity, the formation of which is facilitated by the conformational flexibility of the ligands.