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Poly[diaqua-bis(?(3)-1H-benzimidazole-5,6-dicarboxyl-ato-?N:O,O:O)bis-(?(2)-1H,3H-benzimidazolium-5,6-dicarboxyl-ato-?O,O:O)digadolinium(III)].

ABSTRACT: In the title complex, [Gd(2)(C(9)H(4)N(2)O(4))(2)(C(9)H(5)N(2)O(4))(2)(H(2)O)(2)](n), two of the benzimidazole-5,6-dicarboxyl-ate ligands are pro-ton-ated at the imidazole groups. Each Gd(III) ion is coordinated by six O atoms and one N atom from five ligands and one water mol-ecule, displaying a distorted bicapped trigonal-prismatic geometry. The Gd(III) ions are linked by the carboxyl-ate groups and imidazole N atoms, forming a layer parallel to (001). These layers are further connected by O-H?O and N-H?O hydrogen bonds into a three-dimensional supra-molecular network.

SUBMITTER: Huang JX

PROVIDER: S-EPMC2971816 | biostudies-other | 2009 Nov

REPOSITORIES: biostudies-other

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Poly[diaqua-bis(μ(3)-1H-benzimidazole-5,6-dicarboxyl-ato-κN:O,O:O)bis-(μ(2)-1H,3H-benzimidazolium-5,6-dicarboxyl-ato-κO,O:O)digadolinium(III)].

Huang Jie-Xuan JX Wu Yi-Yi YY Huang Chun-De CD Lian Qing-Yang QY Zeng Rong-Hua RH

Acta crystallographica. Section E, Structure reports online 20091114 Pt 12

In the title complex, [Gd(2)(C(9)H(4)N(2)O(4))(2)(C(9)H(5)N(2)O(4))(2)(H(2)O)(2)](n), two of the benzimidazole-5,6-dicarboxyl-ate ligands are pro-ton-ated at the imidazole groups. Each Gd(III) ion is coordinated by six O atoms and one N atom from five ligands and one water mol-ecule, displaying a distorted bicapped trigonal-prismatic geometry. The Gd(III) ions are linked by the carboxyl-ate groups and imidazole N atoms, forming a layer parallel to (001). These layers are further connected by O-H ...[more]

PMID: 21578602

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