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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3380
Title: Using meta conjugation to enhance charge separation versus charge recombination in phenylacetylene donor-bridge-acceptor complexes
Authors: Thompson A.L.
Ahn T.-S.
Justin Thomas, K. R.
Thayumanavan S.
Martínez T.J.
Bardeen C.J.
Published in: Journal of the American Chemical Society
Abstract: A pair of donor-bridge-acceptor electron-transfer complexes, with a carbazole donor and a naphthalimide acceptor connected by either a para- or meta-conjugated phenylacetylene bridge, are synthesized and studied using time-resolved and steady-state spectroscopy. These experiments show that the charge separation times, which depend on the coupling of the donor and acceptor through the excited bridge moiety, are similar for the two molecules (Meta and Para). The charge recombination time, however, is a factor of 10 slower for Meta than for Para. These results are related to changes in the electronic coupling of the bridge depending on its electronic state, and show that meta-conjugated bridges provide a possible motif for the design of asymmetric molecular wires. Copyright © 2005 American Chemical Society.
Citation: Journal of the American Chemical Society (2005), 127(47): 16348-16349
URI: https://doi.org/10.1021/ja054543q
http://repository.iitr.ac.in/handle/123456789/3380
Issue Date: 2005
ISSN: 27863
Author Scopus IDs: 7404597385
9737206000
57203389297
57203195779
7102270609
7003840634
Author Affiliations: Thompson, A.L., Department of Chemistry, University of Illinois, Urbana, IL 61801, United States
Ahn, T.-S., University of California, Riverside, CA 92521, United States
Thomas, K.R.J., University of Massachusetts, Amherst, MA 01003, United States
Thayumanavan, S., University of Massachusetts, Amherst, MA 01003, United States
Martínez, T.J., Department of Chemistry, University of Illinois, Urbana, IL 61801, United States
Bardeen, C.J., University of California, Riverside, CA 92521, United States
Corresponding Author: Thayumanavan, S.; University of Massachusetts, Amherst, MA 01003, United States; email: thai@chem.umass.edu
Appears in Collections:Journal Publications [CY]

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