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. 2009 Dec 3;9(12):9741–9804. doi: 10.3390/s91209741

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© 2009 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Figure 27. — Structural changes of the all-trans, 15-anti chromophore during photoreactions. The all-trans, 15-anti form, either in BR_AT or ASR_AT, is first photoconverted to the 13-cis, 15-anti form, followed by thermal isomerization at C13 = C14 or C15 = N position in BR or ASR, respectively. Such thermal relaxations lead to 100% photocyclic and photochromic reactions for BR_AT and ASR_AT, respectively. This figure is reprinted with permission from Kawanabe et al. [71]. Copyright 2007 American Chemical Society.