Title

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/


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