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Papers quoted in Current Contents on project 1-03-153


Quoted papers: 2
Other papers: 0
Total: 2


Title: Inductive effects in alternants hydrocarbons: the two-photon spectra of biphenylene and 2,3,6,7-tetra-ethil-biphenylene

Authors:
Gellini, C.
Salvi, Pier Remiggio
Orlić, Nada (34250)
Journal: Chemical physics letters
ISSN: 0009-2614
Number of references: 31
Language: engleski
Summary: 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 (31-440 nm). The S0 --> S1 transition of BP, although group-theoreticaly allowed, is only weacly observed. The TEBP spectrum is, for both transitions, stronger than that of BP. The experimental data are related to the pseudoparity symmetryof alternant hydrocarbons and to the inductive perturbation of pseudoparity selection rules. Due to the enhancement, the TEBP spectrum shows additional spectral structures with respewct to BP, among which the weak onset of the S0 --> S1 transition around 23100 cm**-1.
Keywords: biphenylene, tetra-ethyl-biphenylene, electronic transition, two-photon processes


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