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Substituent effects on the photophysical properties of fluorescent 2-benzoylmethylenequinoline difluoroboranes: A combined experimental and quantum chemical study Dedication: This publication is dedicated to the memory of Prof. Jerzy Pa̧czkowski.
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2013 (English)In: Dyes and pigments, ISSN 0143-7208, E-ISSN 1873-3743, Vol. 99, no 3, 957-965 p.Article in journal (Refereed) Published
Abstract [en]

In this study, we demonstrate a successful synergy between theory and experiment and report on the photophysical properties of a recently synthesized series of substituted 2-benzoylmethylenequinoline difluoroboranes with a view towards the effect of substitution on their properties. In general difluoroboranes are known to have a bright fluorescence but for some analogs the properties are not fully understood. Quantum chemistry methods have been applied in order to explain a complex structure of the absorption and emission spectra and to gain an insight into the charge redistribution upon the excitation of the investigated molecules. We demonstrate that the spectra of this important class of compounds can be satisfactorily simulated using quantum chemistry methods. In particular, the absorption and emission band structure was resolved and the spectral features were assigned to C-H wagging and skeletal vibrations of the polycyclic core.

Place, publisher, year, edition, pages
2013. Vol. 99, no 3, 957-965 p.
Keyword [en]
Difluoroboranes, Fluorescence, Quinolines, Substituent effect, TD-DFT calculations, Vibronic structure, Emission spectroscopy, Quantum chemistry, Protactinium
National Category
Chemical Engineering Chemical Sciences Theoretical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-133795DOI: 10.1016/j.dyepig.2013.08.002ISI: 000327560200058Scopus ID: 2-s2.0-84961974062OAI: oai:DiVA.org:kth-133795DiVA: diva2:677071
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QC 20131209

Available from: 2013-12-09 Created: 2013-11-11 Last updated: 2017-12-06Bibliographically approved

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Ågren, Hans

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CiteExportLink to record
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