Luminescence and vibrational spectra of the uranyl compound [(CH3)4N]2UO2F4
Abstract
The UO2F2–4 ion in [(CH3)4N]2UO2F4 has the longest luminescent lifetime and lowest-energy first excited state reported for any uranyl compound. The luminescence, infrared and Raman spectra of this compound are analysed in detail and eight of the eleven internal modes of the anion assigned in D4h symmetry. The spectra of several decomposition products of [(CH3)4N]UO2F4 are discussed.