Spiropyran-based liquid crystals: the formation of columnar phases via acid-induced spiro-merocyanine isomerisation.
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.
Tan
Boon-Hooi
BH
Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Tokyo, 113-8656, Japan.
Yoshio
Masafumi
M
Ichikawa
Takahiro
T
Mukai
Tomohiro
T
Ohno
Hiroyuki
H
Kato
Takashi
T
D000143:Acids / Q000737:chemistry*; D016880:Anisotropy; D001578:Benzopyrans / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry*; D007536:Isomerism; D050866:Liquid Crystals / Q000737:chemistry*; D015394:Molecular Structure; D009574:Nitro Compounds / Q000737:chemistry*; D013057:Spectrum Analysis; D013141:Spiro Compounds / Q000737:chemistry*; D013696:Temperature
D000143:Acids; D001578:Benzopyrans; D007211:Indoles; D009574:Nitro Compounds; D013141:Spiro Compounds; C516131:spiro-merocyanine; C088184:spiropyran