The He(I) photoelectron (p.e.) spectra of benzo[b]biphenylene (1) and dibenzo[b,h]biphenylene (2) are reported. The spectra are interpreted by comparison with the results of semi-empirical m.o. calculations. The assignment of the p.e. spectra of both compounds is confirmed by the relationship between the electronic transition energies for the α, p- and β-bands and the ionization potentials.
H. Yamaguchi, M. Higashi, R. Gleiter and H. Baumann, J. Chem. Soc., Faraday Trans. 2, 1986, 82, 183 DOI: 10.1039/F29868200183
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