Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5376476 | Chemical Physics | 2007 | 10 Pages |
Abstract
Several anilino-pyridinium-type hemicyanines including flexible and bridged model compounds are compared using experimental and quantum chemical methods. The flexible compounds show broadened fluorescence band and exhibit strong fluorescence quenching connected with a barrierless viscosity-controlled transition from the planar to the perpendicular geometry. The latter is connected with a small S1-S0 and a vanishing S1-T1 energy gap, with charge localization and with forbidden emissive character.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
V. Kharlanov, W. Rettig,