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Catena-Poly[[[aqua-bis(1H-imidazole-?N)copper(II)]-?-naphthalene-1,4-dicarboxyl-ato-?O:O] dihydrate].

ABSTRACT: In the title compound, {[Cu(C(12)H(6)O(4))(C(3)H(4)N(2))(2)(H(2)O)]·2H(2)O}(n), the Cu(II) cation is coordinated by two naphthalene-1,4-dicarboxyl-ate (naph) dianions, two imidazole mol-ecules and one water mol-ecule in a distorted square-pyramidal geometry. The Cu-O bond distance in the apical direction is 0.509?(3)?Å longer than the mean Cu-O bond distance in the basal plane. The naph dianion bridges two Cu(II) cations, forming a one-dimensional polymeric chain. The coordinated water mol-ecule is hydrogen-bonded to the carboxylate groups and imidazole ligands of adjacent polymeric chains, forming a three-dimensional supra-molecular structure. No ?-? stacking is observed in the crystal structure. One solvent water molecule is disordered equally over two positions.

SUBMITTER: Li JH

PROVIDER: S-EPMC2961746 | biostudies-literature | 2008 Jun

REPOSITORIES: biostudies-literature

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catena-Poly[[[aqua-bis(1H-imidazole-κN)copper(II)]-μ-naphthalene-1,4-dicarboxyl-ato-κO:O] dihydrate].

Li Jun-Hua JH Nie Jing-Jing JJ Xu Duan-Jun DJ

Acta crystallographica. Section E, Structure reports online 20080621 Pt 7

In the title compound, {[Cu(C(12)H(6)O(4))(C(3)H(4)N(2))(2)(H(2)O)]·2H(2)O}(n), the Cu(II) cation is coordinated by two naphthalene-1,4-dicarboxyl-ate (naph) dianions, two imidazole mol-ecules and one water mol-ecule in a distorted square-pyramidal geometry. The Cu-O bond distance in the apical direction is 0.509 (3) Å longer than the mean Cu-O bond distance in the basal plane. The naph dianion bridges two Cu(II) cations, forming a one-dimensional polymeric chain. The coordinated water mol-ecule ...[more]

PMID: 21202799

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catena-Poly[[bis-(1H-imidazole-?N)copper(II)]-?-benzene-1,4-dicarboxyl-ato-?O:O].

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Project description:In the title compound, [Cu(C(8)H(4)O(4))(C(12)H(11)N(5))(2)(H(2)O)](n), the Cu(II) ion is five-coordinated by two carboxyl-ate O atoms from two symmetry-related benzene-1,4-dicarboxyl-ate ligands, two N atoms from two symmetry-related N(6)-benzyl-adenine ligands and one water O atom in a square-pyramidal environment. The Cu(II) and water O atoms lie on a twofold rotation axis, and the benzene-1,4-dicarboxyl-ate ligand lies on an inversion center. The water O atom occupies the apical position and the basal plane is occupied by two O atoms and two N atoms. Each benzene-1,4-dicarboxyl-ate anion acts as a bis-monodentate ligand that binds two Cu(II) cations, forming an infinite chain extending parallel to [001]. The N(6)-benzyl-adenine ligands are attached on both sides of the chain. Neighboring chains are further inter-connected into the resulting three-dimensional supra-molecular architecture via O-H?O, N-H?O and N-H?N hydrogen bonds.

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Poly[[tetra-aqua-bis-(?(3)-imidazole-4,5-dicarboxyl-ato)tetra-kis-(?(2)-imidazole-4,5-dicarboxyl-ato)tricobalt(II)dilutetium(III)] dihydrate].

Project description:In the title compound, {[Co(3)Lu(2)(C(5)H(2)N(2)O(4))(6)(H(2)O)(4)]·2H(2)O}(n), the Lu(III) ions are seven-coordinated in a monocapped trigonal prismatic coordination geometry by six O atoms from three imidazole-4,5-dicarboxyl-ate ligands and one water O atom. The Co(II) ions are six-coordinated in a slightly distorted octa-hedral geometry and exhibit two types of coordination environments. One Co(II) ion, located on an inversion center, is coordinated by two water O atoms as well as two O atoms and two N atoms from two imidazole-4,5-dicarboxyl-ate ligands. The other Co(II) ion is bonded to four O atoms and two N atoms from four imidazole-4,5-dicarboxyl-ate ligands. These metal coordination units are connected by bridging imidazole-4,5-dicarboxyl-ate ligands, generating a three-dimensional network. The crystal structure is further stabilized by N-H?O, O-H?O, and C-H?O hydrogen-bonding inter-actions between the water mol-ecules and the imidazole-4,5-dicarboxyl-ate ligands.

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