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Synthesis and photobehaviour of donor-π-acceptor conjugated arylacetylenes

Paper ID Volume ID Publish Year Pages File Format Full-Text
27253 44012 2011 9 PDF Available
Title
Synthesis and photobehaviour of donor-π-acceptor conjugated arylacetylenes
Abstract

Two series of soluble and thermally stable asymmetric arylacetylene derivatives bearing a fluorene (Fl-Xs) or an anthracene (An-Xs) core unit and end-substituted with different electronically active groups (X = NO2, CN, CHO and OR) were synthesized and characterized. The spectral and photophysical behaviour of these compounds was studied in two solvents of different polarity to evaluate them as candidates for the role of active materials in optoelectronic devices. The presence of intramolecular charge transfer states, strongly stabilized in the polar solvent, was found mainly in the nitro-anthryl and fluorenyl-derivatives. A complete picture of the excited states nature and their deactivation channels was also achieved by semiempirical quantum-mechanical calculations.

► Synthesis of soluble arylacetylene derivatives, promising classes of semiconductors. ► Peculiar photobehaviour of push–pull systems. ► Compounds with the anthracene moiety are interesting materials for solar energy storage. ► Fluorosolvatochromism of fluorene-derivatives makes them potential NLO materials.

Keywords
Anthracene and fluorene derivatives; Push–pull arylacetylenes; Synthesis; Spectral/photophysical properties; Intramolecular charge transfer states
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Synthesis and photobehaviour of donor-π-acceptor conjugated arylacetylenes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 223, Issues 2–3, 25 September 2011, Pages 140–148
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us