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Poly[?(3)-hydroxido-?-(pyridine-2,4,6-tricarboxyl-ato)-dilead(II)].

ABSTRACT: The asymmetric unit of the title coordination polymer, [Pb(2)(C(8)H(2)NO(6))(OH)](n), contains two crystallographically independent Pb(II) ions, one pyridine-2,4,6-tricarboxyl-ate (ptc) trianion and one hydroxide anion. One of the Pb(II) atoms is coordinated by one pyridine N and four carboxyl-ate O atoms from the ptc trianion and a hydroxide O atom in a distorted octa-hedral geometry. The other Pb(II) atom is five-coordinated by three carboxyl-ate O atoms and two hydroxide O atoms in a distorted tetra-gonal-pyramidal geometry. Four neighbouring Pb(II) atoms are bridged through two ?(3)-hydroxide ligands, forming the centrosymmetric Pb(4)(OH)(2) core. The three-dimensional structure is further achieved through bridging carboxyl-ate groups. There are also O-H?O hydrogen bonds between the hydroxide ligand and the carboxyl-ate group.

SUBMITTER: Zhou YH

PROVIDER: S-EPMC3050173 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature

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Poly[μ(3)-hydroxido-μ-(pyridine-2,4,6-tricarboxyl-ato)-dilead(II)].

Zhou Ying-Hua YH Chen Jian J Cheng Yong Y Zhang Nian-Rong NR

Acta crystallographica. Section E, Structure reports online 20101204 Pt 1

The asymmetric unit of the title coordination polymer, [Pb(2)(C(8)H(2)NO(6))(OH)](n), contains two crystallographically independent Pb(II) ions, one pyridine-2,4,6-tricarboxyl-ate (ptc) trianion and one hydroxide anion. One of the Pb(II) atoms is coordinated by one pyridine N and four carboxyl-ate O atoms from the ptc trianion and a hydroxide O atom in a distorted octa-hedral geometry. The other Pb(II) atom is five-coordinated by three carboxyl-ate O atoms and two hydroxide O atoms in a distorte ...[more]

PMID: 21522542

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