SPECTROSCOPIC AND MAGNETIC-PROPERTIES OF COPPER(II) NIFLUMATES

The synthesis and characterisation of Cu(niflumate)2 and Cu(niflumate) 2(3-pyridylcarbinol)2 is reported. Characterisation of the compounds w ere based on elemental analyses, electronic and EPR spectra and magnet ic susceptibility measurements over a temperature range (4.2 to 295K). ESR of powdered solids were typical for S = 1/2, with well resolved p erpendicular and parallel hyperfine splitting. Magnetic susceptibiliti es obey the Curie-Weiss law. Both compounds have a probable polymeric structure with a pseudo-octahedral environment about the Cu(II) centre .