Synthesis, structure and gas adsorption properties of coordination polymers based on mixed imidazole-containing ligands and carboxylate ligands

Herein, we report the synthesis of two novel coordination polymers using a combination of imidazole-containing ligands, namely 1,3,5-tris((1H-imidazol-1-yl) methyl)benzene (L-1) and 3,3',5,5' -tetra(1H-imidazol-1-yl)-1,1'-biphenyl (L-2) and a carboxylate ligand derived from 4,4'-biphenyldicarboxylic acid (H2BPDC). The structures of the two coordination polymers [Ni(L-1)(BPDC)]center dot 2H(2)O (1 center dot 2H(2)O), which exhibits a 2-fold interpenetrated 3D -> 3D architecture, and {[Co(CH3OH)(2)(L-2)(0.5)(BPDC)] (2) possessing a 2D framework, have been determined. Moreover, the gas adsorption properties of 1 and 2 have been investigated.

Automated summary

This study reported the synthesis of two novel coordination polymers using a combination of imidazole-containing ligands and a carboxylate ligand derived from 4,4'-biphenyldicarboxylic acid. The structures of the two coordination polymers [Ni(L-1)(BPDC)]•2H2O and {[Co(CH3OH)2(L-2)(0.5)(BPDC)] have been determined, showing different 3D and 2D architectures. Gas adsorption properties of these coordination polymers were also investigated.