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Molecular Vibronic Structures of HDITC in Solutions Studied by Femtosecond Wavelength‐Resolved Pump‐Probe Spectroscopy
Author(s) -
Yang T.S.,
Vöhringer P.,
Dietz W.,
Scherer N. F.,
Lin S. H.
Publication year - 1999
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199900057
Subject(s) - chemistry , cyanine , femtosecond , wavelength , spectroscopy , vibronic spectroscopy , molecular vibration , molecular physics , atomic physics , analytical chemistry (journal) , optics , molecule , laser , fluorescence , physics , organic chemistry , chromatography , quantum mechanics
Wavelength‐resolved pump‐probe measurements using 11 fs duration pulses were performed to study the vibronic structures of HDITC, a cyanine dye, in ethylene glycol. Ten vibrational modes were observed in the forms of quantum beats. The frequencies of these ten vibrational modes ranged from 135 cm −1 to 1300 cm −1 . The relative potential displacements along these ten vibrational coordinates were estimated by comparison with theoretical calculations.