Two-photon spectroscopy of antiaromatic molecules: the case of biphenylene
โ Scribed by V.T. Bich; R. Bini; P.R. Salvi; G. Marconi
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 548 KB
- Volume
- 175
- Category
- Article
- ISSN
- 0009-2614
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The two-photon spectra of biphenylene (BP) and 2,3,6,7-tetra-ethyl-biphenylene (TEBP) have been measured in the region of the lowest two electronic transitions (310-440 nm). The S, -+ S, transition of BP, although group-theoretically allowed, is only weakly observed. The TEBP spectrum is, for both t
By means of two-photon sequential absorption via real intermediate rotational levels of the A state, vibrational levels of three new excited electroruc states of the sodium dimer have been observed in the 4 eV regron. These states are identified as F 1 z;, G 1 rig and H 1 Q. Their vibrational and ro