BACKGROUND SUBTRACTION FROM TRANSITION-METAL 2P XPS BY DECONVOLUTION USING LIGAND ATOM XPS - STUDY ON FIRST TRANSITION-METAL CYANIDE COMPLEXES

The primary excitation spectra of the first transition metal series 2p X-ray photoelectron spectra for the metal cyanide ions are obtained b y a deconvolution method. As the CN- ions coordinate to the transition metal, N1s spectra are used as a response function for the deconvolut ion using a Fourier transform method. The obtained spectra have fiat z ero level backgrounds, whereas the universal curve of the Tougaard met hod cannot remove the full contribution of energy loss. Among some bac kground subtraction methods, the intensity ratios of 2p(3/2) to 2p(1/2 ) calculated by the present method are closest to the theoretical phot oionization cross section ratios.