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]·0.5H2O} 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.