Crystal structure of diaqua-bis(2-methyl-1H-imidazole-4,5- dicarboxylato-O,N)nickel, [Ni(H2O)2(C6H5N2O4)2]

Abstract

Abstract. X-ray single crystal diffraction studies reveal that the nickel complex and cobalt complex are isostructural.In the title crystal structure, the Ni atom lying on ac rystallographic inversion center is six-coordinated by two N,O-bidentate 2-methyl-1H-imidazole-4,5-dicarboxylic acid mono-anionic ligands and two water molecules. As in the Co complex, two coordinated water molecules occupy the apical sites, and the equatorial plane contains two bidentate 2-methyl-1H-imidazole-4,5-dicarboxylic acid mono-anionic ligands. Rich O−H···O, N−H···O and C−H···Ohydrogen bonds link the mononuclear nickel complex into a3 Ds upramolecular structure. The mean distances Ni-Oand Ni-Nof2.0794 Å and 2.0528 Å,respectively, are smaller than that of Co-O(2.1179 Å)and

Crystal structure of diaqua-bis(2-methyl-1H-imidazole-4,5-dicarboxylato-κ2-O,N)cadmium(II) tetrahydrate, C12H22CdN4O14

“…Extensive investigation has focused on the construction of coordination polymers using 4,5-imidazoledicarboxylates and derivatives as bridging ligands [3,4]. However, the reports of coordination polymer with 2-methyl-1H-imidazole-4,5-dicarboxylato ligands are still rare [5][6][7][8][9]. Recently, our group reported ve coordination polymers with 2-methyl-1H-imidazole-4,5-dicarboxylate ligand.…”

“…Recently, our group reported ve coordination polymers with 2-methyl-1H-imidazole-4,5-dicarboxylate ligand. The reported coordination polymers not only show beautiful and interesting topological structures, for instance 0-D, 1-D, 2-D and 3-D but also exhibits very exible coordination modes [5][6][7][8][9]. Therefore, we have been engaged in synthesizing new MOFs with H 2 MIA-ligand.…”

Crystal structure of tetraaqua-bis(1H-indazole-6-carboxylate-κN)cadmium (II), C16H18CdN4O8

“…have attracted much attention because of their potential applications as microporous, magnetic, nonlinear optical, and fluorescent materials [5,6]. Over the past few years, extensive investigation has focused on the construction of coordination polymers using 4,5-imidazoledicarboxylic acid and derivatives as bridging ligands [7][8][9][10][11][12][13][14]. Recently, our group also reported five coordination polymer with the 2-methyl-1Himidazole-4,5-dicarboxylate ligand (MIA).…”

“…Recently, our group also reported five coordination polymer with the 2-methyl-1Himidazole-4,5-dicarboxylate ligand (MIA). The reported coordination polymer with MIA not only shows beautiful and interesting topological structures, for instance 0D, 1D, 2D and 3D but also exhibits very flexible coordination modes [10][11][12][13][14]. Therefore, we have been engaged in new MOFs with N-heterocyclic carboxylate ligands.…”