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Two new complexes {[Pb(L1)(DMSO)2(H2O)]·DMF}n(1,L1= 2,2′-dihydroxy-l,l′-dinaphthyl-3,3′-dicarboxylate) and {[Pb(L2)(DMS O)·DMSO}n(2,L2= 2,2′-dimethoxy-l,l′-dinaphthyl-3,3′-dicarboxylate) have been synthesized under mild conditions and structurally characterized. Crystal structural analysis reveals that complex1adopts a 1D infinite chain structure which forms 2D sheet by hydrogen bonds interactions. Complex2possesses a 2D sheet structure, which was further assembled into a 3D supramolecular network through the π-π weak interactions. IR spectra indicates the carboxyl group coordinates with the Pb2+ion. TGA shows that complex2is highly thermally stable up to 120°C. [ABSTRACT FROM PUBLISHER]

A novel metal-organic framework Co(bnbc)(C5H5N)3(complex1) (H2bnbc = 2,2′-dibenzyl-1,1′-binaphthyl- 3,3′-dicarboxylic acid) has been synthesized under mild conditions and structurally characterized. IR spectra indicates that the coordination mode of carboxyl group of complex1is chelating bidentate with the Co2+ion. Crystal structural analysis reveals that complex1adopts a one-dimensional (1D) infinite line structure, and the distance between two carbon atoms of the pair carboxyl groups is 8.226 Å which is longer than other analogs. The complex1is further assembled into a 2D supramolecular network through the hydrogen bonds. Thermogravimetric analysis (TGA) shows that complex1is highly thermally stable up to 150°C. X-ray powder diffraction (PXRD) of complex1shows that single crystalline structure is as the same as the huge mass small crystalline structure confirming its purity of phase. Meanwhile, the photoluminescent property of the complex1is investigated. [ABSTRACT FROM PUBLISHER]