Issue 7, 1984
From the journal:

Journal of the Chemical Society, Perkin Transactions 2

The electron spin resonance spectrum of the biphenyl radical cation

John L. Courtneidge,   Alwyn G. Davies,   Timothy Clark  and  Dieter Wilhelm  

Abstract

The e.s.r. spectrum of the biphenyl radical cation, Ph2+· has been observed from the photolysis of benzene or biphenyl and mercury(II) trifluoroacetate in trifluoroacetic acid. The hyperfine coupling constants of Ph2+· and Ph2–· are compared with the predictions of various modifications of the Hückel-McConnell approximation, and it is concluded that this provides no evidence that these species are anything but planar. UHF/MINDO/3 calculations have been carried out on Ph2, Ph2+·, and Ph2–·, and lead to dihedral angles of 6.5 and 6.8° for the radical cation and anion, respectively, with negligible energy differences between the planar and fully optimised structures.

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Article information

DOI
https://doi.org/10.1039/P29840001197
Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1984, 1197-1200

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The electron spin resonance spectrum of the biphenyl radical cation

J. L. Courtneidge, A. G. Davies, T. Clark and D. Wilhelm, J. Chem. Soc., Perkin Trans. 2, 1984, 1197 DOI: 10.1039/P29840001197

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