Tetrahedron

Annellation effects in the pyrene series and the classification of absorption spectra

E Clar, JF Guye-Vuillème, S McCallum, IA Macpherson

Index: Clar,E. et al. Tetrahedron, 1963 , vol. 19, p. 2185 - 2197

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Citation Number: 12

Abstract

The classification of absorption bands in the acene series (α, p, β-bands) was first based on the annellation effect and later on the polarization of the bands with regard to the molecular axes (Lb, La, Bb, Ba-bands). Both give the same result since annelation axes and molecular axes coincide. This is not so in the pyrene series. Annellation axes and molecular axes are different and it is shown that the classification of bands can be based only on the ...