Cobalt(II) and nickel(II) complexes of carbamylmethylenephosphonates
Affiliation:
1. Electrical Engineering Department, Prince Mohammad Bin Fahd University, P.O. Box 1664, Al Khobar 31952, Kingdom of Saudi Arabia;2. Instituto de Telecomunicações, 6201-001 Covilhã, Portugal;3. Escola Superior de Gestão e Tecnologia, Politécnico de Santarém, Complexo Andaluz, Apartado 295, 2001-904 Santaré m, Portugal
Abstract:
The coordinating ability of the organic compounds with the basic skeleton has been investigated and their completely chelated cobalt(II) and nickel(II) complexes have been isolated. These complexes have been characterized by means of their electronic and i.r. spectra and their properties are compared with those of the complexes of similar ligands. The trends observed are rationalized in terms of steric interactions, electronic effects of the substituents, and size of the chelate ring formed.
