Hisamitsu, Shota; Yanai, Nobuhiro; Fujikawa, Shigenori; Kimizuka, Nobuo
Photoinduced crystallization in ionic liquids: photodimerization-induced equilibrium shift and crystal patterning
Chemistry Letters 2015, 44, 7, 908-910
2015.07.12
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Detailed description
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 mol. design for photoresponsive ILs, whose first application for site-selective photo-patterning is demonstrated.