✦ LIBER ✦
Jet-cooled fluorescence excitation spectra and carbonyl wagging potential energy functions of several cyclic ketones in their S1(n, π*) electronic excited states
✍ Scribed by J. Zhang; W.Y. Chiang; P. Sagear; J. Laane
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 372 KB
- Volume
- 196
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
The jet-cooled fluorescence excitation spectra of the n+rr* transitions of cyclopentanone, 3_cyclopenten-l-one, and cyclobutanone have been analyzed to determine the vibrational energy spacings in the S, (n, rF) electronic excited states for the out-ofplane carbonyl wagging motions. A double-minimum potential energy function was determined for each and the barriers were found to be 680, 926, and 1940 cm-', respectively. The carbonyl wagging angles were determined to be 22", 26", and 41", respectively.