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Poly[[(1,10-phenanthroline)(?-l-tartrato)zinc] hexa-hydrate].

ABSTRACT: The title compouand {[Zn(C(4)H(4)O(6))(C(12)H(8)N(2))]·6H(2)O}(n), has a linear chain structure parallel to [100] with Zn(C(4)H(4)O(6))(C(12)H(8)N(2)) repeat units; the asymmetric unit consists of one Zn(2+) cation, one l-tartrate dianion, one 1,10-phenanthroline and six free water mol-ecules. The Zn atom is in a distorted octa-hedral ZnN(2)O(4) coordination environment. The crystal structure is stabilized by O-H?O hydrogen bonds and ?-? stacking of the phenanthroline units [centroid-centroid distances in the range 3.552?(2)-3.625?(2)Å] occurs between the chains. The title compound is isotypic with the Cu and Mn analogues.

SUBMITTER: Dong GY

PROVIDER: S-EPMC3152042 | biostudies-literature | 2011 Jul

REPOSITORIES: biostudies-literature

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Poly[[(1,10-phenanthroline)(μ-l-tartrato)zinc] hexa-hydrate].

Dong Gui-Ying GY He Cui-Hong CH Liu Tong-Fei TF Cui Guang-Hua GH Deng Xiao-Chen XC

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

The title compouand {[Zn(C(4)H(4)O(6))(C(12)H(8)N(2))]·6H(2)O}(n), has a linear chain structure parallel to [100] with Zn(C(4)H(4)O(6))(C(12)H(8)N(2)) repeat units; the asymmetric unit consists of one Zn(2+) cation, one l-tartrate dianion, one 1,10-phenanthroline and six free water mol-ecules. The Zn atom is in a distorted octa-hedral ZnN(2)O(4) coordination environment. The crystal structure is stabilized by O-H⋯O hydrogen bonds and π-π stacking of the phenanthroline units [centroid-centroid di ...[more]

PMID: 21836831

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Tris(1,10-phenanthroline-κN,N')zinc(II) bis-(4-bromo-benzoate) 6.5-hydrate.

Project description:In the title compound, [Zn(C(12)H(8)N(2))(3)](C(7)H(4)BrO(2))(2)·6.5H(2)O, the Zn(II) atom is coordinated by six N atoms from three 1,10-phenanthroline (phen) mol-ecules in a distorted octa-hedral geometry. The chelating phen ligands exhibit nearly perfect coplanarity (r.m.s. deviations of 0.048, 0.039 and 0.061 Å). The mean inter-planar distances of 3.51 (2) and 3.54 (4) Å between adjacent phen ligands indicate π-π stacking inter-actions, which connect the complex cations into chains along [101]. The 4-bromo-benzoate anions and the uncoordinated water mol-ecules, parts of which are not fully occupied, are linked by O-H⋯O hydrogen bonds. Two carboxyl-ate O atoms and one Br atom in the 4-bromo-benzoate anions are each disordered over two sites with occupancy factors of 0.60 and 0.40.

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