Preresonance Raman spectra of methylpyridines | Zendy

Kosmidis C. | Zendy; Bolovinos A. | Zendy; Tsekeris P. | Zendy

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Preresonance Raman spectra of methylpyridines

Author(s) -

Kosmidis C.,

Bolovinos A.,

Tsekeris P.

Publication year - 1990

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.1250211106

Subject(s) - raman spectroscopy , excited state , chemistry , wavelength , vibronic coupling , spectral line , laser , intensity (physics) , vibronic spectroscopy , molecular physics , atomic physics , optics , physics , astronomy

Preresonance Raman spectra of methylpyridines (picolines) are presented for different incident laser wavelengths. A strong intensity variation of the non‐totally symmetric vibration 10α is observed, which implies a vibronic coupling of the lowest nπ* excited state with the next ππ* ( B 2u and B 1u ) states. In addition an intensity increase of some totally symmetric vibrations is observed and their possible implications for the geometry of the excited ππ* states are discussed.

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