X-RAY K-ABSORPTION SPECTROSCOPIC STUDIES OF SOME COBALT(II) COMPLEXES

X-ray K-absorption spectra of some cobalt(ll) complexes of newly synth esized mannich bases of biological interest have been studied using Se ifert X-ray generator and Cauchois type bent crystal X-ray spectrograp h of 0.4 m radius. The observed X-ray parameters, e.g. chemical shift, shift of principal absorption maximum, edge-width, effective nuclear charge and percentage covalency have been used to explain the structur e of the complexes, and these parameters have also been correlated wit h earlier chemical studies.