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Abstract Based on the mixed ligands of aromatic pentacarboxylate of 3,5-di(2′,4′-dicarboxylphenyl)benozoic acid (H5L) and 1,4-bis(imidazol-1-yl) benzene (bib), two novel coordination polymers, namely, [Ni1.5(H2L)(bib)1.5(H2O)2]n (1), and {[Pb2(HL)(bib)1.5(H2O)]·H2O}n (2) have been synthesized… Click to show full abstract
Abstract Based on the mixed ligands of aromatic pentacarboxylate of 3,5-di(2′,4′-dicarboxylphenyl)benozoic acid (H5L) and 1,4-bis(imidazol-1-yl) benzene (bib), two novel coordination polymers, namely, [Ni1.5(H2L)(bib)1.5(H2O)2]n (1), and {[Pb2(HL)(bib)1.5(H2O)]·H2O}n (2) have been synthesized and characterized by EA, IR, TG, PXRD. Structure analyses reveal that complexes 1 and 2 are both (3,4,4)-connected structures with the same stoichiometry of (3-c)2(4-c)2(4-c), the 2D {63}2{64.8.10}{64.82}2 trilayer for 1, and 3D {6.82}2{64.82}2{8.104.12} network for 2. Complexes 1 and 2 exhibit excellent recyclable, selective, and sensitive detection of Cr(VI) anions in aqueous solution. The possible mechanism for selective luminescence quenching responses toward Cr(VI) anions is also discussed in detail.
Journal Title: Journal of Solid State Chemistry
Year Published: 2018
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