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Exciton splitting of absorption spectra in radical dimers

โœ Scribed by M. Itoh

Publisher
Elsevier Science
Year
1968
Tongue
English
Weight
400 KB
Volume
2
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

Splitting of UV absorption bands of the substituted pyridinyl radicals by formation of CT type dimers is discussed using an esciton model. From observed results and theoretfcal considerations a kind of twisted model is proposed in the dimer, where the two radicals lie one above the other in paraIfeL pfrmes, but are rotated from each other by a small angle around an axis perpendicular to the molecular planes.

This twisted model may be ascribed to steric hindrance of bulky substituents to the dimer formation.

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