Four cadmium(II) polymeric frameworks constructed by 2-methyl or 2-ethyl imidazole dicarboxylates

A New 3D Mn(II) Coordination Polymer Built by 2-(m-Methylphenyl)-Imidazole Dicarboxylate Ligand

“…Recently, this kind of organic ligand, 4,5-dicarboxy-imidazole (H 3 IDC), which has six potential donor atoms: two imidazole nitrogens and four carboxylate oxygen atoms, and can remove one to three hydrogen atoms forming H 3-n IDC n-(n D 1, 2, or 3) species, has attracted much attention. [4][5][6] Consequently, the derivatives of H 3 IDC still have caught people's eyes, for instance, 2-methyl-1H-imidazole-4,5-dicarboxylic acid (MH 3 IDC), 2-ethyl-1H-imidazole-4,5-dicarboxylic acid (EH 3 IDC), and so on, which have been used to build up beautiful MOFs as 1D chains and ladders, 2D grids, 3D networks, and helical staircase networks under appropriate conditions. [4][5][6] More recently, our group has a strong interest in introducing a bulky aromatic group to the 2-position of the imidazole ring in the compound H 3 IDC.…”

“…[4][5][6] Consequently, the derivatives of H 3 IDC still have caught people's eyes, for instance, 2-methyl-1H-imidazole-4,5-dicarboxylic acid (MH 3 IDC), 2-ethyl-1H-imidazole-4,5-dicarboxylic acid (EH 3 IDC), and so on, which have been used to build up beautiful MOFs as 1D chains and ladders, 2D grids, 3D networks, and helical staircase networks under appropriate conditions. [4][5][6] More recently, our group has a strong interest in introducing a bulky aromatic group to the 2-position of the imidazole ring in the compound H 3 IDC. Some interesting MOFs have been successfully synthesized with 2-phenyl-1H-imidazole-4,5-dicarboxylic acid (PhH 3 IDC) ligand.…”

“…View of the 3D honeycomb-like framework constructed by the [Mn 6 (m-MePhHIDC)6 ] cages. 4000 cm ¡1 ) of 1 is consistent with the crystal structure analysis.…”

Construction of cobalt-imidazole-based dicarboxylate complexes with topological diversity: From metal–organic square to one-dimensional coordination polymer

“…These organic anions can occur with neutral ligands, such as 1,10-phenanthroline, to be used to synthesize one-dimensional (1D), two-dimensional (2D) and three-dimensional (3D) infinite frameworks [6]. More recently, the derivatives of H 3 IDC with methyl, ethyl or propyl substituent at the 2-position of the imidazole ring have been used to build up intriguing complexes under different conditions [7].…”

“…These organic anions can occur with neutral ligands, such as 1,10-phenanthroline, to be used to synthesize one-dimensional (1D), two-dimensional (2D) and three-dimensional (3D) infinite frameworks [6]. More recently, the derivatives of H 3 IDC with methyl, ethyl or propyl substituent at the 2-position of the imidazole ring have been used to build up intriguing complexes under different conditions [7].In order to investigate the substituent effect of H 3 IDC derivatives and steric hindrance of corresponding ligands on their complex structures, we select two structurally different organic acids, 4,5-imidazoledicarboxylic acid (H 3 IDC) and 2-propyl-1H-imidazole-4,5-dicarboxylic acid (H 3 PrIDC) as reactants. Herein, we report the successful synthesis and crystal structures of two new complexes, Co(IDC)(phen) (1) and [Co(PrIDC)(phen)] n ⋅nH 2 O (2) (phen = 1,10-phenanthroline).…”