title: Dual luminescence in solid CuI(piperazine): hypothesis of an emissive 1-D delocalized excited state.
abstract: Solid [CuI(piperazine)0.5]∞, characterized by a structure with an infinite double chain of CuI, presents an unexpected dual luminescence. The short copper-copper distances allow the existence of both cluster-centered and 1-D delocalized electronic transitions, as emerged from theoretical calculations. Beyond the more common cluster-centered emission a higher energy band, which differs in lifetime and in temperature dependence, is observed.
authors.affiliation: Dip. Chimica "G. Ciamician", Università di Bologna, Via Selmi 2, 40126 Bologna, Italy. l.maini@unibo.it.
authors.forename: L
authors.initials: L
authors.lastname: Maini
authors.forename: D
authors.initials: D
authors.lastname: Braga
authors.forename: P P
authors.initials: PP
authors.lastname: Mazzeo
authors.forename: L
authors.initials: L
authors.lastname: Maschio
authors.forename: M
authors.initials: M
authors.lastname: Rérat
authors.forename: I
authors.initials: I
authors.lastname: Manet
authors.forename: B
authors.initials: B
authors.lastname: Ventura