Relationship between the Molecular Structure of Merocyanine Dyes and the Vibrational Fine Structure of Their Electronic Absorption Spectra

Abstract

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. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.