Vibrational contributions to the molecular first and second hyperpolarizabilities of a push-pull polyene

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Abstract

The vibrational contributions to the first and second hyperpolarizabilities of a push-pull polyene are theoretically studied by using the valence-bond charge-transfer model. The formal relationships between the vibrational and electronic contributions to the hyperpolarizabilities are derived. It is found that there exist strong correlations between the vibrational contributions and bond length alternation of a push-pull polyene. By calculating these contributions numerically, it is proven that the vibrational contributions, estimated from the IR, Raman, and hyper-Raman measurements, to the hyperpolarizabilities can also provide a measure of the nonlinear optical property.

Original languageEnglish
Pages (from-to)1936-1940
Number of pages5
JournalJournal of Chemical Physics
Volume107
Issue number6
Publication statusPublished - 1997 Aug 8

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Polyenes
alternations
charge transfer
valence
optical properties
Bond length
electronics
Charge transfer
Optical properties

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Vibrational contributions to the molecular first and second hyperpolarizabilities of a push-pull polyene. / Kim, Hyun S.; Cho, Minhaeng; Jeon, Seung-Joon.

In: Journal of Chemical Physics, Vol. 107, No. 6, 08.08.1997, p. 1936-1940.

Research output: Contribution to journalArticle

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