Chemical effects on the fine structure of L111 absorption edge of rhenium

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Abstract
Fine structure of the L111 absorption edge of rhenium in its freshly prepared five complexes has been investigated with a 1 m curved mica crystal spectrograph. A prominent absorption maximum (white line) has been detected at the L111 edge. Chemical effects on the fine structure are restricted in the energy region lying within nearly 100 eV of the main edge. It appears that the EFS is independent of the symmetry of the absorbing crystal. The shape of L111 edge suggests octahedral coordination for rhenium in the complexes under investigation. Bond lengths are determined employing x‐ray fine structure methods. It is found that the present results favor Lytle's method for the metal and that of Levy's for complexes.

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