Abstract
Three novel solvent-dependent Cd(II) coordination architectures [Cd3(BPT)2(DMF)2]·2H2O [1], [Cd3(BPT)2(DMA)2] [2], and [(CH3CH2)2NH2]·[Cd(BPT)]·2H2O [3] were obtained by the hydrothermal reaction of a C2-symmetric tricarboxylate linker, biphenyl-3,4′,5-tricarboxylic acid (H3BPT), with cadmium nitrate in the mixed solvents of water with N,N-dimethylformamide (DMF), N,N-dimethylacetamide (DMA), diethylformamide (DEF), respectively. Single-crystal X-ray diffraction analyses reveal that complex 1 is a three-dimensional (3D) network containing infinite Cd–O–Cd chains with the solvent DMF molecule bridging the neighboring Cd1 and Cd2 centers. Though complex 2 also has a 3D network containing infinite metal-carboxylate chains, the solvent DMA molecule only coordinates to one of the Cd(II) centers as a terminated solvent molecule. Complex 3 possesses a two-dimensional (2D) (6, 3) honeycomb type net formed by the mononuclear metal ion and the BPT ligand, which are further stacked in ABAB fashion through π–π intera...
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