Rydberg States of Styrene from VUV Absorption and REMPI Spectra
✍ Scribed by J.G. Philis; A. Ioannidou; A.A. Christodoulides
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 422 KB
- Volume
- 174
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
The VUV absorption spectrum of gas phase styrene has been remeasured and interpreted, taking into consideration the argon matrix-isolated styrene's spectrum and resonance-enhanced multiphoton ionization spectra (REMPI). Of particular interest was the detection of Rydberg states. Three Rydberg states with (n=3) were detected at (5.799 \mathrm{eV}(\delta=0.74), 6.456 \mathrm{eV}(\delta=) (0.40)), and (6.5281 \mathrm{eV}(\delta=0.35)). Only the (6.5281 \mathrm{eV}) state has a strong REMPI signal and a well-defined vibrational structure. This Rydberg state has the same geometry as the ground state (planar styrene). The two origins of the "benzenoid (E_{1 u}) " valence state were detected at 5.986 and (6.161 \mathrm{eV}) and therefore the (B_{p}-B_{k}) splitting is (0.175 \mathrm{eV}). co 1995 Academic Press. Inc.