Rotational barriers in perylene fluorescent dyes

Rotational barriers in N-substituted perylene dyes have been determined. Phenyl substituents with tert-butyl groups in the o-position give rigid systems, whereas secondary alkyl groups cause low rotational barriers. In spite of that, fluorescent quantum yields are high in both cases. Conformations i...

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Bibliographic Details
Published in:Spectrochimica acta. Part A: Molecular spectroscopy 1988, Vol.44 (11), p.1189-1193
Main Authors: Langhals, Heinz, Demmig, Stefan, Huber, Helmut
Format: Article
Language:English
Subjects:
Atomic and molecular physics
Barrier heights (internal rotation, inversion, rotational isomerism, conformational dynamics)
Exact sciences and technology
Molecular properties and interactions with photons
Physics
Properties of molecules and molecular ions
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Summary:Rotational barriers in N-substituted perylene dyes have been determined. Phenyl substituents with tert-butyl groups in the o-position give rigid systems, whereas secondary alkyl groups cause low rotational barriers. In spite of that, fluorescent quantum yields are high in both cases. Conformations in solution are discussed.
ISSN:0584-8539
DOI:10.1016/0584-8539(88)80091-6