Collect. Czech. Chem. Commun.
1988, 53, 987-994
https://doi.org/10.1135/cccc19880987
Complexes of N-methyliminobis(methylenephosphonic) acid with cobalt, nickel, copper, and zinc
Ivan Lukeš, Zdeněk Kváča and Ivor Dominák
Department of Inorganic Chemistry, Charles University, 128 40 Prague 2
Abstract
The 1 : 1 cobalt, nickel, copper and zinc complexes of N-methyliminobis(methylenephosphonic) acid, and 1 : 2 cobalt and nickel complexes were prepared. The effect of alkali and alkali earth metals as "external cations" on the crystallization and stoichiometry of solid cobalt complex was investigated. Infrared and electronic spectra and magnetic susceptibilities indicate that cobalt and nickel form high-spin complexes. The coordination sphere of the central atom is formed by a distorted octahedron of the ligand oxygen atoms.