title: Syntheses and tunable emission properties of 2-alkynyl azulenes.
abstract: Various substituted 2-azulenes have been synthesized via Sonogashira coupling. Doping with superacids allows tunable emission from 443 to 750 nm depending on the substitution. The proton doped compounds are the first azulene alkyne based systems that show emission originating only from the S(1) excited state.
authors.affiliation: Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
authors.forename: Michael
authors.initials: M
authors.lastname: Koch
authors.forename: Olivier
authors.initials: O
authors.lastname: Blacque
authors.forename: Koushik
authors.initials: K
authors.lastname: Venkatesan