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Poly[triaqua-(?-butane-1,2,3,4-tetra-carboxyl-ato)dicadmium(II)].

ABSTRACT: The asymmetric unit of the title Cd(II) coordination polymer, [Cd(2)(C(8)H(6)O(8))(H(2)O)(3)](n), contains two crystallographically independent Cd(II) cations, one-half each of two independent anionic butane-1,2,3,4-tetra-carboxyl-ate units (L) and three water mol-ecules. Both anionic units lie on inversion centers. One of the Cd(II) ions is six-coordinated by four carboxyl-ate O atoms from four L anions and two water O atoms in a distorted octa-hedral coordination environment. The other Cd(II) ion is eight-coordinated by seven carboxyl-ate O atoms from four L anions and one water O atom. The anionic units bridge neighboring Cd(II) centers, forming a three-dimensional framework. O-H?O hydrogen-bonding inter-actions between the water mol-ecules and carboxyl-ate O atoms further stabilize the structure.

SUBMITTER: Ma CH

PROVIDER: S-EPMC2971854 | biostudies-other | 2009

REPOSITORIES: biostudies-other

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Poly[triaqua-(μ-butane-1,2,3,4-tetra-carboxyl-ato)dicadmium(II)].

Ma Chun-Hong CH Yan Yong-Sheng YS

Acta crystallographica. Section E, Structure reports online 20091111 Pt 12

The asymmetric unit of the title Cd(II) coordination polymer, [Cd(2)(C(8)H(6)O(8))(H(2)O)(3)](n), contains two crystallographically independent Cd(II) cations, one-half each of two independent anionic butane-1,2,3,4-tetra-carboxyl-ate units (L) and three water mol-ecules. Both anionic units lie on inversion centers. One of the Cd(II) ions is six-coordinated by four carboxyl-ate O atoms from four L anions and two water O atoms in a distorted octa-hedral coordination environment. The other Cd(II) ...[more]

PMID: 21578592

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