Study of chemical shift in Ll and L? X-ray emission lines in different chemical forms of 48Cd and 50Sn compounds using WDXRF technique

Chemical shift in Ll and L? X-ray emission lines of Cd-48 and Sn-50 elements in various chemical compounds was determined with high resolution wavelength dispersive X-ray fluorescence (WDXRF) spectrometer. The positive and negative shifts were measured in Cd-48 compounds viz, CdS, CdB4O7, CdCl2, Cd-3(PO4)(2), CdCO3, CdI2 and CdO with reference to pure Cd foil and Sn-50 compounds viz, Sn(CrO4)(2), SnO, SnO2, SnCl2, SnF2, SnF4 with reference to pure Sn foil. The measured energy shifts in Ll X-ray emission lines range from -0.47 to 1.82eV and L? emission lines range from -2.67 to 1eV for both compounds. The effective charges (q, q(/), q(//), and q(///)) were calculated from four models (Pauling method, Suchet method, Levine method and Batsonav method) and found to be linear dependence with chemical shift. The measured chemical shifts were correlated with effective charge, number of ligands and electronegativity of the central metal atom in the given compounds.