title: Spiropyran-based liquid crystals: the formation of columnar phases via acid-induced spiro-merocyanine isomerisation.
abstract: 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.
authors.affiliation: Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Tokyo, 113-8656, Japan.
authors.forename: Boon-Hooi
authors.initials: BH
authors.lastname: Tan
authors.forename: Masafumi
authors.initials: M
authors.lastname: Yoshio
authors.forename: Takahiro
authors.initials: T
authors.lastname: Ichikawa
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Mukai
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Ohno
authors.forename: Takashi
authors.initials: T
authors.lastname: Kato
mesh_terms: 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
chemical_list: D000143:Acids; D001578:Benzopyrans; D007211:Indoles; D009574:Nitro Compounds; D013141:Spiro Compounds; C516131:spiro-merocyanine; C088184:spiropyran