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Catena-Poly[[[diaqua-manganese(II)]-?(3)-pyridine-2,3-dicarboxyl-ato-?N,O:O:O] dihydrate].

ABSTRACT: In the title coordination polymer, {[Mn(C(7)H(3)NO(4))(H(2)O)(2)]·2H(2)O}(n), the Mn(II) ion is coordinated in a distorted octahedral environment by the O atoms of two water mol-ecules, one N and one O atoms of the chelating pyridine-2,3-dicarboxyl-ate (PDC) dianion, and two axial bridging carboxyl-ate O atoms from two adjacent PDC ligands. The fully deprotonated PDC anion acts a ?(3)-bridging ligand, establishing a chain structure along the a axis. These polymeric chains are connected into a three-dimensional framework via several inter-molecular O-H?O hydrogen bonds.

SUBMITTER: Du ZX

PROVIDER: S-EPMC2959413 | biostudies-literature | 2008 Sep

REPOSITORIES: biostudies-literature

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catena-Poly[[[diaqua-manganese(II)]-μ(3)-pyridine-2,3-dicarboxyl-ato-κN,O:O:O] dihydrate].

Du Zhong-Xiang ZX Li Jun-Xia JX

Acta crystallographica. Section E, Structure reports online 20080920 Pt 10

In the title coordination polymer, {[Mn(C(7)H(3)NO(4))(H(2)O)(2)]·2H(2)O}(n), the Mn(II) ion is coordinated in a distorted octahedral environment by the O atoms of two water mol-ecules, one N and one O atoms of the chelating pyridine-2,3-dicarboxyl-ate (PDC) dianion, and two axial bridging carboxyl-ate O atoms from two adjacent PDC ligands. The fully deprotonated PDC anion acts a μ(3)-bridging ligand, establishing a chain structure along the a axis. These polymeric chains are connected into a th ...[more]

PMID: 21201037

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Project description:In the title compound, [Mn(C(8)H(2)NO(6))(H(2)O)(2)](n), each pyridine-2,4,6-tricarboxyl-ate (tpc) ligand bridges two Mn(II) ions with the formation of polymeric chains located on a twofold rotation axis. Each Mn(II) ion is coordinated by two O and one N atoms from one tpc ligand, two O atoms from another ligand and two water mol-ecules in a distorted penta-gonal-bipyramidal geometry. The Mn-N [2.243?(2)?Å] and Mn-O [2.206?(2)-2.3123?(16)?Å] bond lengths are normal. The coordinated water mol-ecules link neighbouring polymeric chains via O-H?O hydrogen bonds into a two-dimensional framework parallel to the bc plane.

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