Accession Number : ADA115474

Title :   OsF6 Energy Levels and Vibronic Coupling in the (dt2g)2 Configuration.

Descriptive Note : Technical rept.,

Corporate Author : COLORADO STATE UNIV FORT COLLINS DEPT OF CHEMISTRY

Personal Author(s) : Michalopoulos,D L ; Bernstein,E R

PDF Url : ADA115474

Report Date : 02 Feb 1982

Pagination or Media Count : 57

Abstract : Electronic and vibronic energy levels of the (d sub 2 sub tg)-squared configuration of OsF6 are studied using electronic Raman scattering and absorption spectroscopy. The ground state has been identified as E sub g (crystal field split by approx. 28/cm) and the first excited state is T sub lg with crystal field energy levels at 14, 28 and 40/cm. The three other regions of the spectrum that have been observed are at 4,000/cm, 8,000/cm, and 17,000/cm covering the remaining (d sub 2 tg)-squared configuration levels. The 4,000/cm band consists of A sub lg and T sub lg electron states which do not interact strongly through vibronic coupling. The T sub lg electronic state evidences a strong approx. (D 2.2) linear Jahn Teller effect for Nu sub 5 and an observable Jahn Teller effect for Nu sub 2. The band at 8,000/cm consists of E sub g and T sub 2g electronic states; it is so complex and strongly coupled that little information can be extracted from the absorption data concerning the Jahn-Teller interaction in this 5-fold degenerate manifold. The feature at 17,000/cm is an A sub lg electronic state and its elucidation follows normal behavior found in other hexafluoride spectra. (Author)

Descriptors :   *Molecular energy levels, Absorption spectra, Particle beams, Light scattering, Raman spectra, Raman spectroscopy, Molecular vibration, Molecule molecule interactions, Configurations, Coupling(Interaction), Metals, Excitation

Subject Categories : Atomic and Molecular Physics and Spectroscopy
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE