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Photochemistry and photophysics of a morpholino methylthio phenyl ketone: A steady-state, picosecond pump-probe laser spectroscopy and molecular modeling investigation

Paper ID Volume ID Publish Year Pages File Format Full-Text
28030 44056 2008 9 PDF Available
Title
Photochemistry and photophysics of a morpholino methylthio phenyl ketone: A steady-state, picosecond pump-probe laser spectroscopy and molecular modeling investigation
Abstract

The photophysics of 2-methyl-1-[4-(methylthio) phenyl]-2-(4-morpholinyl)-1-propanone TPMK, compared to that of two reference compounds (2-methyl-1-phenyl-2-(4-morpholinyl)-1-propanone and 1-[4-(methylthio)phenyl]-ethanone), was studied by means of absorption spectroscopy, phosphorescence and time-resolved absorption spectroscopy. A four-level kinetic scheme has been proposed for TPMK as an explanation for the observed excited state processes. A strong solvent effect has been noticed upon the excited state lifetimes. Modeling calculations help to describe the excited state properties.

Keywords
Clevage process; Pump-probe spectroscopy; Photoinitiator
First Page Preview
Photochemistry and photophysics of a morpholino methylthio phenyl ketone: A steady-state, picosecond pump-probe laser spectroscopy and molecular modeling investigation
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 197, Issues 2–3, 25 June 2008, Pages 342–350
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering