title: "Lock and key control" of photochromic reactivity by controlling the oxidation/reduction state.
abstract: A photochemical active triangle terarylene was synthesized and the photochromic behavior was investigated. Its photochromic reactivity can be strongly suppressed by selected oxidization of the sulfur atoms in the molecules. Reactivated photochromic reactivity was obtained by deoxidization of the S, S-dioxide moieties. The suppressed photoactivity of the oxidation state was attributed to the stronger intramolecular hydrogen bonding interactions.
authors.affiliation: College of Chemistry and Environmental Science, Henan Normal University, Xinxiang, Henan, 453007, People's Republic of China. lixiaochuan@henannu.edu.cn
authors.forename: Xiaochuan
authors.initials: X
authors.lastname: Li
authors.forename: Yuzhen
authors.initials: Y
authors.lastname: Ma
authors.forename: Bingcai
authors.initials: B
authors.lastname: Wang
authors.forename: Gongan
authors.initials: G
authors.lastname: Li
mesh_terms: D018360:Crystallography, X-Ray; D005030:Ethylenes / Q000138:chemical synthesis / Q000737:chemistry* / Q000528:radiation effects; D006860:Hydrogen Bonding; D008027:Light; D008958:Models, Molecular; D015394:Molecular Structure; D010084:Oxidation-Reduction; D010777:Photochemistry; D013237:Stereoisomerism; D013438:Sulfhydryl Compounds / Q000138:chemical synthesis / Q000737:chemistry* / Q000528:radiation effects; D014466:Ultraviolet Rays
chemical_list: D005030:Ethylenes; D013438:Sulfhydryl Compounds