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Relationship between the Molecular Structure of Merocyanine Dyes and the Vibrational Fine Structure of Their Electronic Absorption Spectra
Author(s) -
Mustroph Heinz,
Mistol Jürgen,
Senns Bianca,
Keil Dietmar,
Findeisen Matthias,
Hennig Lothar
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200902687
Subject(s) - merocyanine , alternation (linguistics) , solvent polarity , polarity (international relations) , absorption spectroscopy , photochemistry , solvent , absorption (acoustics) , chemistry , spectral line , electronic structure , solvent effects , crystallography , materials science , photochromism , computational chemistry , organic chemistry , optics , physics , linguistics , philosophy , biochemistry , astronomy , composite material , cell
Relative intensities of vibronic subbands in the electronic absorption spectra of a new merocyanine dye are influenced by the polarity of the solvent. Increasing solvent polarity leads to an increased π‐charge density alternation in the polymethine chain and, consequently, to reduced bond alternation.