Synthesis, Optical Spectroscopy and Laser Potential of 2,4,6-Triphenylpyrylium Chloride
Document Type
Article
Publication Date
8-17-2022
Publication Title
Chemical Physics Letters
Volume
805
First page number:
1
Last page number:
5
Abstract
The synthesis, optical spectroscopic properties, and lasing potential of 2,4,6-triphenylpyrylium chloride (PyCl) are reported. The synthesis involves conversion of Py-tosylate (instead of commonly used Py-perchlorate) to a pseudo-base, which is then transformed to PyCl by reacting with HCl. Solutions of the salt in different solvents absorb in the blue-near ultraviolet and emit in the blue-green spectral ranges with fluorescence quantum yield of 0.84 in acetonitrile. Under intense ultrashort laser pumping, salt solutions in acetonitrile, ethanol and methanol demonstrated stimulated emission and laser action with nominal feedback. Two-photon excited fluorescence was also observed.
Keywords
2,4,6-Pyrylium chloride; Absorption and emission spectra; Fluorescence quantum yield; Dye laser; Two-photon excited fluorescence
Disciplines
Materials Chemistry | Physical Chemistry
Language
English
Rights
IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/
Repository Citation
Bhowmik, P. K.,
Principe, R. G.,
Chen, S. L.,
King, D.,
Han, H.,
Jubair, A.,
Kartazaev, V.,
Gayen, S. K.
(2022).
Synthesis, Optical Spectroscopy and Laser Potential of 2,4,6-Triphenylpyrylium Chloride.
Chemical Physics Letters, 805
1-5.
http://dx.doi.org/10.1016/j.cplett.2022.139927