Theoretical and experimental x-ray absorption fine structural studies of transition metal complexes

In the present paper, the sample preparation is carried out by combustion assisted method, chemical root method and solid root method. The X-ray spectroscopic setup is available at Raja Ramanna Center for Advanced Technology (RRCAT), Indore, India and is called dispersive EXAFS beamline BL-8. The X-ray absorption spectra have been recorded using synchrotron radiation. This beamline has been recently commissioned at the 2.5 GeV Indus-2 synchrotron radiation sources. The theoretical XANES and EXAFS spectra have been calculated using BL-8 data then use some mathematical method like Levy’s Method, Lytle’s Method, L.S.S. Method and Fourier Transform (FT) Method. In XANES region we find out the values of Cu K –edge, sample K-edge, edge width, chemical shift, shift of principal maxima, percentage covalency and effective nuclear charge. In EXAFS region we find out the value of bond length of all the mathematical methods.