A tetrahedrally coordinated cobalt(II) phosphonate with a three-dimensional framework containing two-dimensional channels.
The structure of poly[caesium(I) [(micro(4)-ethylenediphosphonato)cobalt(II)]], {Cs[Co(C(2)H(5)O(6)P(2))]}(n), reveals a three-dimensional polymeric open framework consisting of tetrahedral Co(II) atoms coordinated by four different ethylenediphosphonate O atoms and intermolecular O-H...O hydrogen bonds. The largest open window is made of corner-sharing CoO(4) and PO(3)C tetrahedra, giving 16-membered rings of dimensions 9.677 (5) x 4.684 (4) A(2). There are two independent ethylenediphosphonate ligands, each lying about an inversion centre.
Department of Chemistry, National Chung Hsing University, 250 Kuo Kuang Rd, Taichung 402, Taiwan.
Shu Juan
SJ
Fu
Ching Yuan
CY
Cheng
Kuan Jiuh
KJ
Lin