Mechanofluorochromism and Thermofluorochromism of Boron Difluoride 3-Methylamino-1,3-diphenyl-2-propen-1-one

Autor: Elena V. Fedorenko, A. G. Mirochnik, Galina O. Tretyakova, N. D. Podlozhnyuk, Irina V. Svistunova
Rok vydání: 2018
Předmět:
Zdroj: Optics and Spectroscopy. 125:512-515
ISSN: 1562-6911
0030-400X
DOI: 10.1134/s0030400x18100168
Popis: Mechanofluorochromism and thermofluorochromism of boron difluoride 3-methylamino-1,3-diphenyl-2-propen-1-one have been detected. Upon grinding of crystals, they exhibit a significant change in their excitation spectra. A dependence of the luminescence spectrum on the wavelength of the exciting light has been found, which indicates the occurrence of luminescence centers of two different structures. Upon heating of a grinding sample, a further evolution of its luminescence and excitation spectra has been observed. The mechanism of the observed effects has been proposed to be associated with dissociation and formation of J-aggregates.
Databáze: OpenAIRE
Nepřihlášeným uživatelům se plný text nezobrazuje