Trifluoroacetate complexes of cobalt(II), nickel(II), and copper(II) with pyridine-type ligands. Part I. Metal(II) trifluoroacetates and copper(II) complexes

Abstract

Complexes of the general type CuL_x(CF₃CO₂)₂, where x= 2 or 4, L = pyridine, mono-and di-substituted pyridines, quinoline, or isoquinoline, have been prepared and characterised by spectroscopic methods. The complexes are six-co-ordinate with the trifluoroacetate group involved in either mono-or bi-dentate attachment to the copper; this distinction has been made by i.r. studies. Thermal decomposition studies were carried out on these complexes. The resulting complexes were of the general stoicheiometry [CuL_x(CF₃CO₂)₂]_n where x= 2, 1, or ½ and n= 1, 2, or perhaps 4.