n,. pi. /sup */ state of jet-cooled benzophenone as studied by sensitized phosphorescence excitation spectroscopy

Journal Article · Thu Oct 23 04:00:00 EDT 1986 · J. Phys. Chem.; (United States)

OSTI ID:6909267

Kamei, S; Sato, T; Mikami, N; Ito, M

The sensitized phosphorescence excitation spectrum of jet-cooled benzophenone due to the S/sub 1/(n,..pi../sup */) produced from S/sub 0/ transition has been measured. It was found that the spectrum consists exclusively of several long progressions of 60 cm/sup -1/ which is the in-phase torsional mode of the phenyl rings. The vibrational analysis and the potential calculation shows that the in the S/sub 1/(n,..pi../sup */) state great geometry changes occur in the dihedral angle between the phenyl rings, the C=O bond distance, and the C-C bonds adjacent to the C=O bond.

• Research Organization: Tohoku Univ., Sendai, Japan
• OSTI ID: 6909267
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:22; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
BENZOPHENONE
DATA
EMISSION SPECTROSCOPY
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
FLUID FLOW
INFORMATION
KETONES
LUMINESCENCE
NORMAL-MODE ANALYSIS
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOSPHORESCENCE
SPECTROSCOPY
SUPERSONIC FLOW
SYMMETRY
VIBRATIONAL STATES