Abstract

In the first paper of this series, a qualitative interpretation was given of the far infrared spectra of several sodium uranium fluorides in the NaF-UF₄ system. The purpose of this work has been to obtain information concerning the U-F vibrations in the uranium complex fluorides in the KF-UF₄ system and furthermore to relate the band location of the U-F stretching vibration with the change of valency states of uranium.