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Poly[[triaqua-(?(3)-4-oxidopyridine-2,6-dicarboxyl-ato)terbium(III)] monohydrate].

ABSTRACT: In the title coordination polymer, {[Tb(C(7)H(2)NO(5))(H(2)O)(3)]·H(2)O}(n), the Tb(III) atom is eight-coordinated by a tridentate 4-oxidopyridine-2,6-dicarboxyl-ate trianion, two adjacent monodentate anions and three water mol-ecules, forming a distorted bicapped trigonal-prismatic TbNO(7) coordination environment. The anions bridge adjacent Tb(III) ions into double chains. Adjacent chains are further connected into sheets parallel to (10). O-H?O hydrogen bonds involving both coordinated and uncoordinated water mol-ecules generate a three-dimensional network.

SUBMITTER: Lv DY

PROVIDER: S-EPMC3052142 | biostudies-literature | 2011 Feb

REPOSITORIES: biostudies-literature

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Poly[[triaqua-(μ(3)-4-oxidopyridine-2,6-dicarboxyl-ato)terbium(III)] monohydrate].

Lv Dong-Yu DY Gao Zhu-Qing ZQ Gu Jin-Zhong JZ

Acta crystallographica. Section E, Structure reports online 20110223 Pt 3

In the title coordination polymer, {[Tb(C(7)H(2)NO(5))(H(2)O)(3)]·H(2)O}(n), the Tb(III) atom is eight-coordinated by a tridentate 4-oxidopyridine-2,6-dicarboxyl-ate trianion, two adjacent monodentate anions and three water mol-ecules, forming a distorted bicapped trigonal-prismatic TbNO(7) coordination environment. The anions bridge adjacent Tb(III) ions into double chains. Adjacent chains are further connected into sheets parallel to (10). O-H⋯O hydrogen bonds involving both coordinated and un ...[more]

PMID: 21522284

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Poly[[triaqua-(μ(3)-4-oxidopyridine-2,6-dicarboxyl-ato)thulium(III)] monohydrate].

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catena-Poly[[[triaqua-copper(II)]-μ(2)-pyrazine-2,3-dicarboxyl-ato] monohydrate].

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Poly[hexa-aqua-bis(μ(3)-naphthalene-2,6-dicarboxyl-ato)(μ(2)-naphthalene-2,6-dicarboxyl-ato)diholmium(III)].

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Poly[triaqua-tris-(μ(4)-pyridine-3,5-dicarboxyl-ato)dicerium(III)].

Project description:The asymmetric unit of the title compound, [Ce(2)(C(7)H(3)NO(4))(3)(H(2)O)(3)](n), contains two Ce(III) cations, three pyridine-3,5-dicarboxyl-ate (pyd) anions and three coordinated water mol-ecules. One Ce(III) cation is coordinated by seven carboxyl-ate O atoms from six pyd anions and two water mol-ecules in a square-face-capped square-anti-prismatic geometry. Another Ce(III) cation is coordinated by seven O atoms from six pdy anions and one water mol-ecule in a bicapped trigonal-prismatic geometry. The pdy anions bridge the Ce(III) cations, forming the three-dimensional polymeric structure. The crystal structure contains extensive O-H⋯O, O-H⋯N and weak C-H⋯O hydrogen bonds. π-π stacking is present in the crystal structure, the shortest centroid-centroid distance between parallel pyridine rings being 3.509 (4) Å.

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| S-EPMC2970953 | biostudies-literature

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