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Diaqua-bis-(5-carb-oxy-1H-imidazole-4-carboxyl-ato-?N,O)iron(II).

ABSTRACT: In the title compound, [Fe(C(5)H(3)N(2)O(4))(2)(H(2)O)(2)], the Fe(II) ion lies on an inversion centre and is coordinated by two N and two O atoms from two 5-carb-oxy-1H-imidazole-4-carboxyl-ate ligands and two water mol-ecules in a distorted octa-hedral geometry. An intra-molecular O-H?O hydrogen bond occurs. In the crystal, inter-molecular N-H?O and O-H?O hydrogen bonds form a three-dimensional network, which consolidates the packing.

SUBMITTER: Du CJ

PROVIDER: S-EPMC3151786 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature

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Diaqua-bis-(5-carb-oxy-1H-imidazole-4-carboxyl-ato-κN,O)iron(II).

Du Chao-Jun CJ Song Xing-Hua XH Wang Li-Sheng LS Du Chao-Ling CL

Acta crystallographica. Section E, Structure reports online 20110630 Pt 7

In the title compound, [Fe(C(5)H(3)N(2)O(4))(2)(H(2)O)(2)], the Fe(II) ion lies on an inversion centre and is coordinated by two N and two O atoms from two 5-carb-oxy-1H-imidazole-4-carboxyl-ate ligands and two water mol-ecules in a distorted octa-hedral geometry. An intra-molecular O-H⋯O hydrogen bond occurs. In the crystal, inter-molecular N-H⋯O and O-H⋯O hydrogen bonds form a three-dimensional network, which consolidates the packing. ...[more]

PMID: 21836968

Similar Datasets

trans-Diaqua-bis[5-carb-oxy-2-(3-pyrid-yl)-1H-imidazole-4-carboxyl-ato-?N,O]iron(II).

Project description:In the title complex, [Fe(C(10)H(6)N(3)O(4))(2)(H(2)O)(2)], the Fe(II) atom is located on an inversion centre and is trans-coordinated by two N,O-bidentate 5-carb-oxy-2-(3-pyrid-yl)-1H-imidazole-4-carb-oxy-l-ate ligands and two water mol-ecules, defining a distorted octa-hedral environment. A two-dimensional network of N-H?O and O-H?O hydrogen bonds extending parallel to (110) helps to stabilize the crystal packing.

| S-EPMC2977312 | biostudies-literature

Triclinic modification of diaqua-bis-(5-carb-oxy-1H-imidazole-4-carboxyl-ato-?(2)N(3),O(4))iron(II).

Project description:The title compound, [Fe(C(5)H(3)N(2)O(4))(2)(H(2)O)(2)], is a triclinic modification of a monoclinic form recently reported by Du et al. [Acta Cryst. (2011) ?, E67, m997]. The Fe(II) ion lies at an inversion center and is coordinated by two N and two O atoms from two 5-carb-oxy-1H-imidazole-4-carboxyl-ate ligands in trans positions, together with two water mol-ecules, completing a slightly distorted octahedral coordination. Inter-molecular N-H?O hydrogen bonding between the N-H group of the imidazole ring and the deprotonated carboxyl-ate group builds a chain of 5-carb-oxy-1H-imidazole-4-carboxyl-ate anions along the [101] direction. The water molecules form intermolecular hydrogen bonds to O-C and O=C sites of the carboxylate group in adjacent layers.

| S-EPMC3414146 | biostudies-literature

Diaqua-bis-(5-carb-oxy-2-propyl-1H-imidazole-4-carboxyl-ato-?N,O)cobalt(II) 3.5-hydrate.

Project description:In the title complex, [Co(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·3.5H(2)O, the Co(II) cation is six-coordinated by two H(2)pimda(-) ligands (H(3)pimda is 2-propyl-1H-imidazole-4,5-carboxylic acid) and two water mol-ecules in a distorted octa-hedral environment. The crystal structures features a three-dimensional network stabilized by extensive O-H?O and N-H?O hydrogen bonds. The propyl groups of the ligands are disordered over two sets of sites with refined occupancies of 0.673?(8):0.327?(8) and 0.621?(17):0.379?(17). One of the water mol-ecules is located on a site with half-occupancy.

| S-EPMC3050148 | biostudies-literature

trans-Diaqua-bis[5-carb-oxy-2-(3-pyridyl)-1H-imidazole-4-carboxyl-ato-?N,O]manganese(II).

Project description:In the title compound, [Mn(C(10)H(6)N(3)O(4))(2)(H(2)O)(2)], synthesized by hydro-thermal reaction, the Mn(II) ion lies on an inversion centre and displays a distorted octa-hedral coordination geometry defined by the two imidazole N atoms and two carboxylate O atoms of the two trans-standing chelate ligands, and two O atoms of the water mol-ecules. A two-dimensional supra-molecular architecture is formed via N-H?O, O-H?N and O-H?O hydrogen-bonding inter-actions.

| S-EPMC2959396 | biostudies-literature

Diaqua-bis-(5-carb-oxy-2-propyl-1H-imidazole-4-carboxyl-ato-?N,O)nickel(II) tetra-hydrate.

Project description:In the title complex, [Ni(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·4H(2)O, the Ni(II) ion is coordinated in a slightly distorted octa-hedral environment formed by two bis-chelating H(2)pimda (H(3)pimda is 2-propyl-1H-4,5-dicarb-oxy-lic acid) ligands and two coordinated water mol-ecules. In the crystal structure, a three-dimensional framework is formed by inter-molecular O-H?O and N-H?O hydrogen bonds involving the solvent water mol-ecules, coordinated water mol-ecules, carboxyl-ate O atoms and the protonated N atoms of the H(2)pimda ligands. The propyl groups of each H(2)pimda ligand are disordered over two sets of sites with refined occupancies of 0.50?(2):0.50?(2) and 0.762?(11):0.238?(11). In one water solvent mol-ecule, one of the H atoms was refined as disordered over two sites of equal occupancy.

| S-EPMC3007488 | biostudies-literature

Diaqua-bis(5-carb-oxy-2-propyl-1H-imidazole-4-carboxyl-ato-?N,O)magnesium(II) 3.5-hydrate.

Project description:In the title complex, [Mg(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·3.5H(2)O, the Mg(II) atom is six-coordinated by two N,O-bidentate 5-carb-oxy-2-propyl-1H-imidazole-4-carboxyl-ate ligands and two water mol-ecules, forming a distorted octa-hedral environment. The complex mol-ecules are linked into a three-dimensional network by N-H?O and O-H?O hydrogen-bonding inter-actions. The propyl groups are disordered over two sites, with site occupancies of 0.755?(7):0.245?(7) and 0.556?(13):0.444?(13).

| S-EPMC2983537 | biostudies-literature

Diaqua-bis-(5-carb-oxy-2-propyl-1H-imidazole-4-carboxyl-ato-?N,O)zinc(II) 3.5-hydrate.

Project description:In the title complex, [Zn(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·3.5H(2)O, the Zn(II) ion is coordinated by two N,O-bidentate H(2)pimda ligands (H(3)pimda = 2-propyl-1H-imidazole-4,5-dicarb-oxy-lic acid) and two water mol-ecules in a distorted octa-hedral environment. In the crystal structure, extensive inter-molecular O-H?O and N-H?O hydrogen bonds stabilize the three-dimensional supra-molecular network. Intra-molecular O-H?O hydrogen bonds between the carboxyl groups are also observed. The propyl groups of the two H(2)pimda ligands are disordered each over two sites, with occupancy factors of 0.752?(5):0.248?(5) and 0.519?(7):0.481?(7). One of the water mol-ecules is half-occupied.

| S-EPMC3008058 | biostudies-literature

Poly[diaqua-bis(?-4-carb-oxy-2-propyl-1H-imidazole-5-carboxyl-ato-?N,O:O)calcium(II)].

Project description:In the title complex, [Ca(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)](n), the Ca(II) atom is eight-coordinated in a distorted square-anti-prismatic environment. The water-coordinated Ca atom is N,O-chelated by the monocarboxyl-ate anion; the carboxyl -CO(2) portion engaged in chelation bears an acid hydrogen. The free -CO(2) portion engages in bonding to adjacent Ca atoms. The Ca(II) centres are connected through the ligand, forming a layer structure; the layers are linked by hydrogen bonds into a three-dimensional network.

| S-EPMC2980060 | biostudies-literature

Diaqua-bis(5-carb-oxy-2-methyl-1H-imidazole-4-carboxyl-ato-?N,O)cobalt(II) dimethyl-formamide disolvate.

Project description:In the title compound, [Co(C(6)H(5)N(2)O(4))(2)(H(2)O)(2)]·2C(3)H(7)NO, the Co(II) ion lies on an inversion center and adopts a slightly distorted CoN(2)O(4) octa-hedral geometry binding two bidentate chelating 5-carb-oxy-2-methyl-1H-imidazole-4-carboxyl-ate (H(2)MIDA(-)) monoanionic ligands and two axial aqua ligands. In the crystal structure, inter-molecular O-H?O hydrogen bonds link neighboring mol-ecules, generating a two-dimensional framework containing eight-membered H(4)O(4) rings. In addition, the dimethyl-formamide solvent mol-ecules are hydrogen bonded to the two-dimensional framework via the NH groups of the H(2)MIDA(-) ligands.

| S-EPMC2977566 | biostudies-literature

trans-Diaqua-bis-[5-carb-oxy-2-(3-pyrid-yl)-1H-imidazole-4-carboxyl-ato-κN,O]cobalt(II).

Project description:In the title complex, [Co(C(10)H(6)N(3)O(4))(2)(H(2)O)(2)], the Co(II) atom is located on an inversion centre and displays a distorted octa-hedral coordination geometry defined by two N,O-bidentate ligands in the equatorial plane and two water mol-ecules in the axial positions. The conformation is stabilized by intra-molecular O-H⋯O hydrogen bonds. Inter-molecular N-H⋯O hydrogen bonds link the mol-ecules into chains, which are further connected by inter-molecular O-H⋯O and O-H⋯N hydrogen-bonding inter-actions, forming a two-dimensional supra-molecular network parallel to (110).

| S-EPMC3200953 | biostudies-literature

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