EXAFS studies of cobalt(II) complexes with salicylic acids

Extended X-ray absorption fine structure studies at the K-absorption edges of four complexes of cobalt(II) with salicylic acid have been carried out. The studies reveal that as the effective charge increases, there is a corre sponding increase in the chemical shift values in the complexes. Further, t he splitting of the principal absorption maximum in these four complexes ha s been correlated with the splitting of the degenerated energy levels of ab sorbing atom. The data have been utilised to estimate the average metal-lig and bond distances in these samples.