Crystal structure of dicadmium(II) ethylenediphosphinetetraacetate octahydrate

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Title:Crystal structure of dicadmium(II) ethylenediphosphinetetraacetate octahydrate
Creators:
Podlaha, Jaroslav
Podlahová, Jana
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 56, 7, pp. 1454-1460

Abstract

The crystal structure of the title compound containing a phosphorus analogue of EDTA as the ligand was determined from single-crystal X-ray diffraction data and refined to <i>R</i> = 0.028 for 1 920 observed reflections. The crystals are monocyclic, space group <i>P</i>2<sub>1</sub>/<i>c,a</i> = 8.6169(8), <i>b</i> = 16.0539(9), <i>c</i> = 8.2504(6)Å, β = 103.458(7)° and <i>Z</i> = 2. The structure is completely different from that of the nitrogen prototype, [CdEDTA]<sup>2-</sup>. It consists of double-stranded polymeric layers which are composed of metal coordination polyhedra linked by μ<sub>6</sub>-hexadentate ligands; the layers lie parallel to the <i>bc</i> plane and are joined along the <i>a</i> axis through hydrogen bonding donated by water molecules. Because of steric requirements of phosphorus, the coordination polyhedron around Cd is greatly distorted and can best be described as a 5 + 3 type. One P atom, two oxygen atoms from two monodentate carboxylate groups and two water molecules form an approximate trigonal bipyramid and further three more remote carboxylate oxygens complete the arrangement, resulting in an O<sub>7</sub>P distorted bicapped trigonal prism.

Title:Crystal structure of dicadmium(II) ethylenediphosphinetetraacetate octahydrate
Creators:
Podlaha, Jaroslav
Podlahová, Jana
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:56
Number:7
Page Range:pp. 1454-1460
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19911454UNSPECIFIED
ID Code:5067
Item Type:Article
Deposited On:22 Feb 2010 11:29
Last Modified:22 Feb 2010 10:30

Citation

Podlaha, Jaroslav; Podlahová, Jana (1991) Crystal structure of dicadmium(II) ethylenediphosphinetetraacetate octahydrate. Collection of Czechoslovak Chemical Communications, 56 (7). pp. 1454-1460. ISSN 0010-0765

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