Abstract
The traditional assignment of the electronic spectrum of ethylene in terms of a π-π* N-V excitation and an overlapping π-3s Rydberg excitation is shown to be widely inconsistent with the oscillator strengths calculated for these transitions. A spectral intensity calculation based on intersecting N-V (B1u) and π-3py (B1g) surfaces, as proposed by Petrongolo et al., is shown to result in a vibronic spectrum in reasonably good agreement with experiment. This revised assignment provides much better overall agreement between theory and experiment than the traditional assignment for which, it is argued, there is no convincing evidence.
Original language | English (US) |
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Pages (from-to) | 448-454 |
Number of pages | 7 |
Journal | Chemical Physics Letters |
Volume | 245 |
Issue number | 4-5 |
DOIs | |
State | Published - Nov 3 1995 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy
- Physical and Theoretical Chemistry