title: pH- and H2O-driven triple-mode pyrene fluorescence.
abstract: [reaction: see text] A simple-structured molecule L1, a diethylenetriamine bearing two end pyrene fragments, demonstrates triple-mode fluorescence consisting of monomer and short- and long-lived excimer emissions in water, which are precisely controlled by pH and an addition of a less-polar organic solvent.
authors.affiliation: Research Center for Solar Energy Chemistry and Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka 560-8531, Japan. shiraish@cheng.es.osaka-u.ac.jp
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Shiraishi
authors.forename: Yasufumi
authors.initials: Y
authors.lastname: Tokitoh
authors.forename: Takayuki
authors.initials: T
authors.lastname: Hirai