title: A new axially-chiral photochemical switch.
abstract: Axially chiral bis(azo) derivative 1 undergoes photochemical isomerisation, which can be seen with circular dichroism and pitch measurements of the induced cholesteric phases.
authors.affiliation: Alma Mater Studiorum-Università di Bologna, Dipartimento di Chimica Organica A. Mangini, Via San Donato 15, 40127 Bologna, Italy.
authors.forename: Silvia
authors.initials: S
authors.lastname: Pieraccini
authors.forename: Stefano
authors.initials: S
authors.lastname: Masiero
authors.forename: Gian Piero
authors.initials: GP
authors.lastname: Spada
authors.forename: Giovanni
authors.initials: G
authors.lastname: Gottarelli