Spiropyran-based liquid crystals: the formation of columnar phases via acid-induced spiro-merocyanine isomerisation.

Spiropyran-based liquid crystals: the formation of columnar phases via acid-induced spiro-merocyanine isomerisation.

Chemical communications (Cambridge, England) (2006-11-17)

Boon-Hooi Tan, Masafumi Yoshio, Takahiro Ichikawa, Tomohiro Mukai, Hiroyuki Ohno, Takashi Kato

RÉSUMÉ

Hexagonal columnar liquid-crystalline phases are induced for a new fan-shaped spiropyran compound as the result of an acidichromism effect of spiro-merocyanine isomerisation through protonation upon incorporation of 4-methylbenzenesulfonic acid.