Date Published: April 01, 2011
Publisher: International Union of Crystallography
Author(s): Laura K. Byington Congiardo, Joel T. Mague, Aaron R. Funk, Ria Yngard, D. Andrew Knight.
The title compound, [Cd(C2H3O3P)(H2O)]n, was obtained from vinylphosphonic acid and cadmium nitrate. The vinyl groups project into the interlamellar space and the structure is held together via van der Waals forces. The Cd2+ ion is six-coordinate and the geometry is best described as distorted octahedral, with O—Cd—O angles falling within the range 61.72 (13)–101.82 (14)°. Five of the coordinated oxygen atoms originate from the phosphonate group and the sixth from a bound water molecule. Cd—O distances lie between 2.220 (3) and 2.394 (2) Å. The water molecule is hydrogen bonded to a phosphonate oxygen atom.
For the isotypic structure of [Zn(C2H3PO3)]·H2O, see: Menaa et al. (2002 ▶). For other cadmium organophosphonates, see: Cao et al. (1993 ▶); Hou et al. (2008 ▶); Bauer et al. (2007 ▶). For other metal phosphonates, see: Brody et al. (1984 ▶); Bujoli et al. (2001 ▶, 2007 ▶); Butcher et al. (2002 ▶); Cheetham et al. (1999 ▶); Clearfield et al. (1997 ▶); Clearfiled & Wang (2002 ▶); Fan et al. (2007 ▶); Hu et al. (2003 ▶).