Meta-conjugation and excited-state coupling in phenylacetylene dendrimers.

Meta-conjugation and excited-state coupling in phenylacetylene dendrimers. Research Abstract Details 

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Meta-conjugation and excited-state coupling in phenylacetylene dendrimers. Abstract Text:

Kevin M Gaab,Alexis L Thompson,Jianjun Xu,Todd J ,Christopher J Bardeen,

Traditional pictures of optical properties in phenylacetylene dendrimers view the molecule as a collection of independent chromophores, linked by meta-substitution at the central phenyl ring. While this picture is reasonable for explaining the observed absorption trends, it breaks down in describing the emission behavior. We utilize a combination of ab initio theory and experiment to demonstrate that differences in the absorbing and emitting states can be described using an exciton model with very weak chromophore coupling for the absorption geometry and strong coupling for the emission geometry. This result may have significant implications for the design of energy-funneling dendrimeric molecules.

Meta-conjugation and excited-state coupling in phenylacetylene dendrimers. Publishing Authors By Initials

KM Gaab,AL Thompson,J Xu,TJ ,CJ Bardeen,

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Meta-conjugation and excited-state coupling in phenylacetylene dendrimers. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of the American Chemical Society

VOLUME: 125

Page Numbers: 9288-9

Journal Abbreviation: J. Am. Chem. Soc.

ISSN: 0002-7863

DAY: 6

MONTH: Aug

YEAR: 2003

Meta-conjugation and excited-state coupling in phenylacetylene dendrimers. Information

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LANGUAGE: eng

NlmUniqueID: 7503056

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Grant and Affiliation Information for Meta-conjugation and excited-state coupling in phenylacetylene dendrimers.

AFFILIATION: Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, USA.

Country: United States

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MEDLINETA: J Am Chem Soc

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