Poly[tetra­aquadi-[mu]3-malonato-cobalt(II)­calcium(II)]

The structure of the polymeric title compound, [CaCo(C3H2O4)2(H2O)4]n, consists of CaO8 and CoO6 polyhedra linked together by malonate groups. The Co atom lies on a centre of symmetry in an octahedral arrangement, and is coordinated by four malonate O atoms in a planar arrangement and two water mol;...

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Bibliographic Details
Published inActa crystallographica. Section C, Crystal structure communications Vol. 62; no. 4; p. m126
Main Authors Djeghri, Assia, Balegroune, Fadila, Achoura Guehria Laidoudi, Toupet, Loic
Format Journal Article
LanguageEnglish
Published Chester Wiley Subscription Services, Inc 01.04.2006
Subjects
Atoms & subatomic particles
Calcium
Cobalt
Crystal structure
Crystallography
Molecules
Polymers
Water
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Summary:The structure of the polymeric title compound, [CaCo(C3H2O4)2(H2O)4]n, consists of CaO8 and CoO6 polyhedra linked together by malonate groups. The Co atom lies on a centre of symmetry in an octahedral arrangement, and is coordinated by four malonate O atoms in a planar arrangement and two water mol;ecules in a trans conformation. The geometry around the Ca atom, which lies on a twofold axis, may be described as a distorted square antiprism, which involves two water molecules and six malonate O atoms. The Co--O and Ca--O bond lengths are in the ranges 2.0711 (12)-2.1004 (14) and 2.3775 (12)-2.6329 (12) [angstrom], respectively. [PUBLICATION ABSTRACT] [PUBLICATION ABSTRACT]
ISSN:0108-2701
1600-5759
DOI:10.1107/S0108270106003866