Novel (4,8)-connected scu coordination framework constructed by tetrakis(4-benzoic acid)ethylene

A novel (4,8)-connected scu {[Co(tbe)(0.5)(H2O)(2)]center dot 0.5H(2)O} framework has been built by using a predesigned octahedral node of tetrakis(4-benzoic acid)ethylene. The magneto-structural relation study indicates weak anti-ferromagnetic coupling between metal ions transmitted by syn-anti carboxylate pathway due to the non-planarity of the Co-O-C-O-Co unit.