Abstract
Five new coordination networks, namely [Cu3(bimb)3(BTC)2] (1), [M(H2O)2(bimb)(SUC)] [M=CoII (2), MnII (3) and NiII (4)] and [Co(bimb)0.5(BDC)] (5) (bimb=1,4-bis(imidazol-1-yl)-butane, H3BTC=1,3,5-benzenetricarboxylic acid, H2SUC=succinic acid and H2BDC=1,4-benzenedicarboxylic acid) have been synthesized hydrothermally and structurally characterized by elemental analysis, IR spectra and X-ray diffraction analyses. Complex 1 exhibits a binodal 3,4-tfz net with 3-fold interpenetration. Complexes 2–4 are isostructural, all showing 3-fold interpenetrated dia structures. Complex 5 is a 3-fold interpenetrated 3D network structure of the pcu topology that is built from tetra-carboxylate dinuclear Co2 units with a paddle-wheel structure. We examined all the related known structures containing the same mixed ligands and found that the reaction conditions play an important role in the final structure. Furthermore, the magnetic property of 5 has also been investigated.
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