The first 3D Zn(II) complex involving chiral chains constructed by achiral ligand 2-(hydroxymethyl)-1H-imidazole-4,5-dicarboxylate

Novel 3d/4f Metal Organic Networks Containing CoII Chiral Chains

“…Lu et al report three isomorphic 2D coordination polymers of [M­(HIDC)­(H 2 O)­(prz) 0.5 ] n (M = Fe II ; Mn II ; Cd II ; prz = piperazine) in which the μ 2 -HIDC 2– ligand alternately bridges the M II cations thus forming right- or left-handed helical chains of [MHIDC] n , which are bridged by prz molecules, and generating a 2D framework. Therefore, considering that in the present work the reagents are achiral, the handedness of the chain can arise both from the coordination capabilities of the H 3 IDC ligand and the spatial requirements of the different fragments …”

Synthesis, Structure and Fluorescence Properties of a Zn(II) Coordination Polymer Based on 2-(Hydroxymethyl)-1H-Imidazole-4,5-Dicarboxylate

“…9 In addition, the polymer [Zn(H 2 hmIDC)] n was obtained by the reaction of Zn(NO 3 ) 2 with H 4 hmIDC in water solution, in which H 2 hmIDC 2− coordinates to the Zn(II) ion in coordination mode (i) (Scheme 1). 10 In this work, by introducing DMF into the above reaction system, the title polymer was isolated, in which the coordination mode of HhmIDC 3− is unprecedented [Scheme 1, mode (j)]. These results indicate that H 4 hmIDC is a powerful ligand, and can be used to construct more complexes.…”

“…For example, solvothermal reaction of 2-(hydroxymethyl)-1H-imidazole-4,5-dicarboxylic acid (H 4 hmIDC) with BaCl 2 can give the coordination polymer [Ba 3 (µ 5 -H 2 hmIDC) (µ 5 -H 3 hmIDC)(µ 4 -NO 3 ) 2 (µ 3 -Cl)] n in DMF-CH 3 CN-HNO 3 solution, 8 or [Ba(µ 3 -H 3 hmIDC) 2 (µ 1 -H 2 O)] n in ethanol-water solution 9 or [Ba(µ 3 -H 3 hmIDC)(µ 4 -H 3 hmIDC)] n in ethanol-DMF solution. 9 To further explore the influence of solvent on the formation of coordination polymers, we introduced DMF into the Zn(NO 3 ) 2 -H 4 hmIDC reaction system, 10 (1). Its X-ray structure, IR spectra, thermostability and fluorescence properties are described below.…”

Crystal structure of catena-poly[diaqua(μ2-2-(hydroxymethyl)-1H-imidazole-4,5-dicarboxylato)cadmium(II)], C6H8CdN2O7

“…N-heterocyclic carboxylic acids have been widely used as ligands since they can offer different donors and diverse coordination modes due to the existence of carboxylate groups as well as potential N-donors. So far, complexes with various topologies and potential applications have been synthesized [4][5][6][7][8][9]. N-heterocyclic carboxylic acid, 2-(hydroxymethyl)-1H-imidazole-4,5-dicarboxylic acid (H4hmIDC) is a good linker since it has two potential N-donors and five potential O-donors and can coordinate to almost all soft and hard metal ions with various coordination modes.…”

“…N-heterocyclic carboxylic acid, 2-(hydroxymethyl)-1H-imidazole-4,5-dicarboxylic acid (H4hmIDC) is a good linker since it has two potential N-donors and five potential O-donors and can coordinate to almost all soft and hard metal ions with various coordination modes. Up to now, several complexes based on HxhmIDC ligand have been reported [6,7,[10][11][12]. The asymmetric unit of the title structure consists of one Cd(II) cation, one dianionic H 2 hmIDC 2− ligand and two coordinating water molecules.…”