Molecular Rydberg transitions. XVI. MCD of CH/sub 3/Br
Magnetic circular dichroism, first derivative (of absorption), and absorption spectra of methyl bromide are presented for the first s--Rydberg transition region, 55 000--61 000 cm/sup -1/. A straightforward analysis in terms of the ratios (MCD/derivative) of the signal amplitudes yields a unique identification of the first s--Rydberg states, /sup 3/E/sub(/sub 1/) and /sup 1/E/sub(/sub 1/). These identifications, in conjunction with oscillator strength ratios and an intermediate coupling model, lead to an assignment of the remaining first s--Rydberg states /sup 3/E/sub(/sub 2/) and /sup 3/E/sub() 0plus-or-minus/. All of these assignments are corroborative of ones based on vibrational analyses and extrapolations (S. Felps, P. Hochmann, P. Brint, and S. P. McGlynn, J. Mol. Spectrosc. 59, 355 (1976)). The power of MCD techniques in VUV Rydberg analyses is strikingly demonstrated.
- Research Organization:
- Choppin Chemical Laboratories, The Louisiana State University, Baton Rouge, Louisiana 70803
- OSTI ID:
- 5756744
- Journal Information:
- J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 72:1; ISSN JCPSA
- Country of Publication:
- United States
- Language:
- English
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Molecular & Chemical Physics
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION SPECTRA
BROMINATED ALIPHATIC HYDROCARBONS
DICHROISM
ENERGY-LEVEL TRANSITIONS
HALOGENATED ALIPHATIC HYDROCARBONS
ORGANIC BROMINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OSCILLATOR STRENGTHS
SPECTRA
ULTRAVIOLET SPECTRA