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.
Fu
Shu Juan
SJ
Department of Chemistry, National Chung Hsing University, 250 Kuo Kuang Rd, Taichung 402, Taiwan.
Cheng
Ching Yuan
CY
Lin
Kuan Jiuh
KJ