title: A new multi-addressable molecular switch based on a photochromic diarylethene with a 6-aryl[1,2-c]quinazoline unit.
abstract: A novel diarylethene with a 6-aryl[1,2-c]quinazoline unit has been synthesized via a nucleophilic reaction. Its photochromism and fluorescence exhibited multi-addressable behaviors by the stimulation of both light irradiation and acid/base. Addition of trifluoroacetic acid to the solution of the diarylethene resulted in notable absorption spectral change, and the protonated form also possessed excellent photochromic properties. Meanwhile, its emission intensity was enhanced remarkably and the emission peak redshifted with a notable color change from dark blue to bright green. The changes could be recovered to the initial state by neutralizing with triethylamine. Consequently, a logic circuit was constructed with the diarylethene by using the fluorescence intensity at 482nm as output and acid/base as inputs.
authors.affiliation: Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, PR China.
authors.forename: Hongjing
authors.initials: H
authors.lastname: Jia
authors.affiliation: Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, PR China. Electronic address: pushouzhi@tsinghua.org.cn.
authors.forename: Shouzhi
authors.initials: S
authors.lastname: Pu
authors.affiliation: Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, PR China.
authors.forename: Congbin
authors.initials: C
authors.lastname: Fan
authors.affiliation: Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, Jiangxi 330013, PR China.
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
mesh_terms: D000097:Acetonitriles / Q000737:chemistry; D005021:Ethylamines / Q000737:chemistry; D005030:Ethylenes / Q000737:chemistry; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry; D008027:Light; D055668:Photochemical Processes; D010777:Photochemistry / Q000379:methods*; D011799:Quinazolines / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet
chemical_list: D000097:Acetonitriles; D005021:Ethylamines; D005030:Ethylenes; D005456:Fluorescent Dyes; D011799:Quinazolines; C016162:triethylamine; C032159:acetonitrile
keywords: 6-Aryl[1,2-c]quinazoline; Diarylethene; Logic circuit; Molecular switch; Photochromism