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Diaqua-bis-(4-carb-oxy-2-propyl-1H-imidazole-5-carboxyl-ato-κN,O)zinc(II) N,N-dimethyl-formamide disolvate.

ABSTRACT: In the crystal structure of the title compound, [Zn(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·2C(3)H(7)NO, the Zn(II) atom is coordinated by two N,O-bidentate 2-propyl-1H-imidazole-4,5-dicarboxyl-ate anions and two water mol-ecules in a distorted octa-hedral environment. The asymmetric unit consists of one Zn(II) atom located on a center of inversion as well as one anion, one water mol-ecule and one additional dimethyl-formamide mol-ecule that occupy general positions. Between the carboxyl and the carboxyl-ate group an intra-molecular hydrogen bond is found in which the hydroxy H atom is disordered. Disorder is also found for the H atoms of one of the three methyl groups. In the crystal structure, additional inter-molecular N-H⋯O and O-H⋯O hydrogen bonding is found.

SUBMITTER: Hao CJ

PROVIDER: S-EPMC3006990 | biostudies-literature |

REPOSITORIES: biostudies-literature

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

Project description:In the title complex, [Cd(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·2C(3)H(7)NO, the six-coordinate Cd(II) ion is in a slightly distorted octa-hedral environment, defined by two O atoms from two coordinated water mol-ecules and two carboxyl-ate O atoms and two N atoms from two N,O-bidentate 5-carb-oxy-2-propyl-1H-imidazole-4-carboxyl-ate ligands. In the crystal, complex mol-ecules and dimethyl-formamide solvent mol-ecules are linked by O-H?O and N-H?O hydrogen bonds into a two-dimensional supra-molecular structure. The propyl groups of the ligands are disordered over two conformations with refined occupancies of 0.680?(7) and 0.320?(7).

| S-EPMC3238758 | biostudies-literature

Diaqua-bis-(4-carb-oxy-2-ethyl-1H-imidazole-5-carboxyl-ato-κN,O)manganese(II) N,N-dimethyl-formamide disolvate.

Project description:In the title compound, [Mn(C(7)H(7)N(2)O(4))(2)(H(2)O)(2)]·2C(3)H(7)NO, the central Mn(II) ion, located on an inversion center, is hexa-coordinated by four O atoms from two water mol-ecules and two carboxyl-ate groups, and two N atoms from two 4-carb-oxy-2-ethyl-1H-imidazole-5-carboxyl-ate anions in a slightly distorted octa-hedral environment. The complex mol-ecules and solvent mol-ecules are connected via N-H⋯O and O-H⋯O hydrogen bonds into a two-dimensional polymeric structure parallel to (001).

| S-EPMC3151971 | biostudies-literature

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

Project description:In the title complex, [Mn(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·2C(3)H(7)NO, the Mn(II) atom, lying on an inversion centre, is six-coordinated by two N,O-bidentate 5-carb-oxy-2-propyl-1H-imidazole-4-carb-oxyl-ate ligands and two water mol-ecules in a distorted octa-hedral environment. In the crystal structure, the complex mol-ecules and dimethyl-formamide solvent mol-ecules are linked by N-H?O and O-H?O hydrogen bonds into a two-dimensional supra-molecular network parallel to (001).

| S-EPMC2980198 | biostudies-literature

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

Project description:In the title complex, [Co(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·2C(3)H(7)NO, the Co(II) cation (site symmetry ) is six-coordinated by two 5-carb-oxy-2-propyl-1H-imidazole-4-carboxyl-ate ligands and two water mol-ecules in a distorted octa-hedral environment. In the crystal structure, the complex mol-ecules and dimethyl-formamide solvent mol-ecules are linked by extensive O-H?O and N-H?O hydrogen bonding into sheets lying parallel to (21).

| S-EPMC3009030 | biostudies-literature

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

Project description:In the title complex, [Cu(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·2C(3)H(7)NO, the Cu(II) ion, lying on an inversion center, is six-coordinated in a slightly distorted octa-hedral geometry. Two N atoms and two O atoms from two H(2)pimda (H(3)pimda is 2-propyl-1H-4,5-dicarb-oxy-lic acid) ligands are in the equatorial plane. The axial positions are occupied by two O atoms from two water mol-ecules. A two-dimensional supra-molecular network parallel to (001) is constructed by N-H?O and O-H?O hydrogen bonds. An intra-molecular O-H?O hydrogen bond is also observed.

| S-EPMC3007369 | biostudies-literature

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

Project description:In the title complex, [Ni(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)]·2C(3)H(7)NO, the Ni(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 in a distorted octa-hedral environment. The methyl C and H atoms of the two ligands are disordered over two sets of sites in 0.74?(2):0.26?(2) and 0.57?(8):0.43?(8) ratios. A supra-molecular network is stabilized by intra- and inter-molecular N-H?O and O-H?O hydrogen bonds involving the ligands, coordinated water mol-ecules and dimethyl-formamide solvent mol-ecules.

| S-EPMC2983735 | 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

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

Project description:In the title compound, [Zn(C(7)H(7)N(2)O(4))(2)(H(2)O)(2)]·2C(3)H(7)NO, the Zn(II) ion, which lies on a center of inversion, is coordinated by two O atoms and two N atoms from two 4-carboxy-2-ethyl-1H-imid-azole-5-carboxyl-ato anions and two water O atoms in an octa-hedral environment, Each 4-carboxy-2-ethyl-1H-imid-azole-5-carboxyl-ato ligand adopts a bidentate chelating mode to the Zn(II) ion, forming two five-membered metalla rings. In the crystal, a two-dimensional framework parallel to (010) is formed by N-H?O and O-H?O hydrogen bonds.

| S-EPMC3089267 | biostudies-literature

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

Project description:In the title complex, [Pb(C(8)H(9)N(2)O(4))(2)(H(2)O)(2)](n), the eight-coordinate Pb(II) atom lies on a twofold rotation axis and adopts a slightly distorted square-anti-prismatic N(2)O(6) coordination geometry. The ligand donor atoms are the tertiary N atoms of the imidazole rings and the carboxyl-ate O atoms of two chelating 5-carb-oxy-2-propyl-1H-imidazole-4-carboxyl-ate ligands, the carb-oxy O atoms of two additional imidazole ligands and two water O atoms. The carb-oxy O and the N,O-chelate systems also link adjacent Pb(II) atoms, forming a two-dimensional layer structure, with four individual Pb(II) atoms located at the corners of a square. These layers are further inter-connected by an extensive array of O-H⋯O and N-H⋯O hydrogen bonds into a three-dimensional network.

| S-EPMC2979092 | biostudies-literature

Diaqua-bis-(pyridine-2-carboxyl-ato-κN,O)manganese(II) dimethyl-formamide hemisolvate.

Project description:There are two crystallographically independent complex mol-ecules with very similar geometries in the unit cell of the title compound, [Mn(C(6)H(4)NO(2))(2)(H(2)O)(2)]·0.5C(3)H(7)NO. The central ion is situated in a distorted octa-hedral environment of two N- and four O-donor atoms from two pyridine-2-carboxyl-ate ligands and two cis-disposed water mol-ecules. The carboxyl-ate ligands are coordinated in a chelate fashion with the formation of two five-membered rings. In the crystal, the complex mol-ecules are connected by O-H⋯O hydrogen bonds between the coordinated water mol-ecules and the uncoordinated carboxyl-ate O atoms, thus forming hydrogen-bonded walls disposed perpendicularly to the bc plane.

| S-EPMC3246979 | biostudies-literature

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