I. Lukeš, I. Císařová, P. Vojtisek
Sep 1, 1995
Citations
0
Influential Citations
6
Citations
Journal
Polyhedron
Abstract
Abstract The synthesis of compounds of piperazine-1,4-diylbis(methylene)bis(phosphinic) acid (H 2 L) ({Bd1}) with Co II is described and the X-ray structures of the isolated complexes [Co(H 2 L) 3 ](ClO 4 ) 2 ·2H 2 O ({Bd2}) and [Co(H 2 O] 6 ]L ({Bd3}), have been determined. Compound {Bd2} forms a three-dimensional polymeric network of cobalt atoms bridged by {Bd1}, which is monodentately coordinated to cobalt through the phosphinate groups. The nitrogen atoms are protonated and non-coordinated. In {Bd3, 1} is deprotonated and forms non-coordinated anions and the octahedral coordination sphere of the cobalt atoms consists of water molecules.