Resonance raman excitonic profile of polydiacetylene described by linear susceptibility theory

The Raman excitation profile measurements of the ≈1520 cm −1 (ω CC) band of the polydiacetylene, poly4BCMU, is described by a linear susceptibility model. The profile may be adequately described by a linear superposition of (at least) three excitonic absorptions. A distribution of (at least) three...

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Bibliographic Details
Published in:Chemical physics letters 1984-01, Vol.109 (3), p.291-295
Main Authors: Barrett, T.W., Freitas, J.A., Snow, A.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Structure, morphology and analysis
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Summary:The Raman excitation profile measurements of the ≈1520 cm −1 (ω CC) band of the polydiacetylene, poly4BCMU, is described by a linear susceptibility model. The profile may be adequately described by a linear superposition of (at least) three excitonic absorptions. A distribution of (at least) three conjugation lengths, which permit photoselection of the different chromophores within the inhomogeneously broadened absorption band, is thus indicated.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(84)85737-1