Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Photoinduced Crystallization in Ionic Liquids: Photodimerization-induced Equilibrium Shift and Crystal Patterning
Shota HisamitsuNobuhiro YanaiShigenori FujikawaNobuo Kimizuka
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JOURNAL RESTRICTED ACCESS Advance online publication

Article ID: 150261


An ionic liquid (IL) composed of 9–anthracene carboxylate anion and ammonium cation possessing three diethylene glycol chains shows photo–triggered dimerization of anthracence chromophores. It causes segregation and crystallization of protonated 9–anthracene carboxylic acid dimer, which is associated with the concurrent liberation of the free amine in the IL. This work provides a new molecular design for photoresponsive ILs, whose first application for site–selective photo–patterning is demonstrated.

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