Acid/Alkali Gated Photochromism of Diarylethenes with Quinoline Derivatives |
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| Authors: | Bo Song Haixia Li Lin Yang Fushi Zhang Junhui Xiang |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, Beijing 100049, China;2. The Key Lab of Organic Photoelectrons & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China |
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| Abstract: | Three new diarylethenes 1 – 3 combined with quinoline derivatives have been synthesized. Through controlled chemical condition of deprotonation/protonation, they presented some new irreversible photochromic phenomenons under UV/Vis light irradiation in chloroform solution. It was found that 1 – 3 had well photoisomerization upon UV/Vis light irradiation in neutral chloroform solution. Addition of acid to the solution of the ring‐opening isomers of 1 – 3 produced 1oa – 3oa , which performed reversible photochromic behavior under UV/Vis light irradiation and reversed back to 1 – 3 under neutralizing with adding lewis base. However, addtion of base to neutral soluton of the ring‐opening isomers of 1 – 3 produced 1ob – 3ob , which could not change to the deprotonated ring‐closing isomers under UV light irradiation. |
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| Keywords: | diarylethene photochromism quinoline acid alkali |
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