Symmetry-Breaking in Cationic Polymethine Dyes: Part 2. Shape of Electronic Absorption Bands Explained by the Thermal Fluctuations of the Solvent Reaction Field

• Published in: The journal of physical chemistry. A, Molecules, spectroscopy, kinetics, environment, & general theory Vol. 119; no. 26; pp. 6807 - 6815
• Main Authors: Masunov, Artëm E, Anderson, Dane, Freidzon, Alexandra Ya, Bagaturyants, Alexander A
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 02.07.2015
• Subjects: Cations - chemistry; Computer Simulation; Dimethyl Sulfoxide - chemistry; Indoles - chemistry; Models, Chemical; Quantum Theory; Solvents - chemistry; Spectrum Analysis; Temperature

The electronic absorption spectra of the symmetric cyanines exhibit dramatic dependence on the conjugated chain length: whereas short-chain homologues are characterized by the narrow and sharp absorption bands of high intensity, the long-chain homologues demonstrate very broad, structureless bands o...