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Diaqua-bis-(2-oxo-2H-chromene-3-carboxyl-ato-?O,O)cadmium.

ABSTRACT: In the title mononuclear cadmium complex, [Cd(C(10)H(5)O(4))(2)(H(2)O)(2)], the Cd(II) atom, located on a crystallographic inversion center, exhibits a slightly distorted octa-hedral geometry and is six-coordinated by two O atoms from water mol-ecules in the axial positions and four O atoms from two deprotonated coumarin-3-carb-oxy-lic acid ligands in the equatorial plane. Angles around the Cd(II) atom vary between 81.00?(5) and 99.00?(0)°. The Cd-O bond lengths vary between 2.1961?(13) and 2.3360?(13)?Å. O-H?O hydrogen bonds between the H atoms of coordinated water mol-ecules and the O atoms of carboxyl-ate groups link the complex mol-ecules into layers parallel to the ab plane.

SUBMITTER: Cui Y

PROVIDER: S-EPMC3050216 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature

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Diaqua-bis-(2-oxo-2H-chromene-3-carboxyl-ato-κO,O)cadmium.

Cui Yue Y Gao Qian Q Wang Huan-Huan HH Wang Lin L Xie Ya-Bo YB

Acta crystallographica. Section E, Structure reports online 20101224 Pt 1

In the title mononuclear cadmium complex, [Cd(C(10)H(5)O(4))(2)(H(2)O)(2)], the Cd(II) atom, located on a crystallographic inversion center, exhibits a slightly distorted octa-hedral geometry and is six-coordinated by two O atoms from water mol-ecules in the axial positions and four O atoms from two deprotonated coumarin-3-carb-oxy-lic acid ligands in the equatorial plane. Angles around the Cd(II) atom vary between 81.00 (5) and 99.00 (0)°. The Cd-O bond lengths vary between 2.1961 (13) and 2.33 ...[more]

PMID: 21522537

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