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Article
that a significant fraction of the azobenzene molecules
isomerize with a cis conformation pointing away from the
surface strongly preferred. We hope that this work will help
increase the understanding of the isomerization mechanism by
highlighting the importance of steric effects, packing, and
crystallinity on the switching in dense films of actively isomeric
molecules with either azobenzene functionality or other
molecular switches that involve conformational change.
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(
(
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Golledge, S. L.; Sasaki, T.; Castner, D. G.; Campbell, C. T.; Stayton, P.
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ASSOCIATED CONTENT
Supporting Information
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(23) Jung, U.; Filinova, O.; Kuhn, S.; Zargarani, D.; Bornholdt, C.;
Herges, R.; Magnussen, O. Langmuir 2010, 26, 13913−13923.
(24) Gahl, C.; Schmidt, R.; Brete, D.; McNellis, E. R.; Freyer, W.;
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AUTHOR INFORMATION
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94015.
Notes
(26) Tamada, K.; Akiyama, H.; Wei, T. Langmuir 2002, 18, 5239−
5
246.
The authors declare no competing financial interest.
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27) Tamada, K.; Akiyama, H.; Wei, T.-X.; Kim, S.-A. Langmuir
003, 19, 2306−2312.
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ACKNOWLEDGMENTS
This research was supported by AFOSR Grant No. FA9550-09-
-0547. We thank Barry C. Thompson, Travis J. Williams, Dana
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1
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Mustafa, and Janet Olson for discussions and help with organic
synthesis. M.O. was supported as a summer undergraduate
researcher by NSF REU grant CHE-0552397.
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999, 103, 402−405.
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dx.doi.org/10.1021/la402144g | Langmuir XXXX, XXX, XXX−XXX