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 |
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Rok vydání: | 2018 |
Předmět: |
Materials science
Excitation spectra 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Laser Photochemistry 01 natural sciences Atomic and Molecular Physics and Optics Dissociation (chemistry) 0104 chemical sciences Electronic Optical and Magnetic Materials law.invention Grinding Wavelength law Boron difluoride 0210 nano-technology Luminescence |
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 |
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