Studies of thermally stimulated reversible restructuring and variation of the optical parameters of molecular layers of polymethine dyes

Герасимова С.И., Калитеевская Е.Н., Крутякова В.П., Разумова Т.К. Исследования термостимулированных обратимых перестроек структуры и оптических параметров молекулярных слоев полиметиновых красителей // Оптический журнал. 2008. Т. 75. № 6. С. 9–12.

Gerasimova S.I., Kaliteevskaya E.N., Krutyakova V.P., Razumova T.K. Studies of thermally stimulated reversible restructuring and variation of the optical parameters of molecular layers of polymethine dyes [in Russian] // Opticheskii Zhurnal. 2008. V. 75. № 6. P. 9–12.

S. I. Gerasimova, E. N. Kaliteevskaya, V. P. Krutyakova, and T. K. Razumova, "Studies of thermally stimulated reversible restructuring and variation of the optical parameters of molecular layers of polymethine dyes," Journal of Optical Technology. 75 (6), 349-352 (2008). https://doi.org/10.1364/JOT.75.000349

This paper discusses the thermally stimulated restructuring of the molecular components of layers of symmetric polymethine dicarbocyanine dyes. Heating the layer to a temperature above 100°C causes a partially reversible conversion of the dimers into monomeric stereoisomers (the all-trans isomer and the β-cis isomer) and into J aggregates, as well as restructuring the β-cis isomer into the all-trans isomer. The restructuring time is tens of minutes. The rate of such conversions depends on the components present in the layer, the structure of the heterocyclic end groups of the monomeric molecules, and the temperature.