title: A drastic substituent effect on the emission properties of quinone diimine models and valuable insight into the excited states of emeraldine.
abstract: The (α-NR,α'-NR,N,N'-(C6H4C≡CSiMe3)4)[Q] models ([Q] = -N=C6H4=N-) exhibit upper excited state emissions Sn,Tn → S0 (n >1, R = Boc), similar to emeraldine, vs. a fluorescence S1 → S0 (R = H), driven by a large change in dihedral angles made by the NR-C6H4 and [Q] planes and intramolecular H-bonds.
authors.affiliation: Département de Chimie, Université de Sherbrooke, 2550 Boulevard de l'Université, Sherbrooke, Québec, Canada J1K 2R1. Pierre.Harvey@USherbrooke.ca.
authors.forename: Mohammed
authors.initials: M
authors.lastname: Abdelhameed
authors.forename: Adam
authors.initials: A
authors.lastname: Langlois
authors.forename: Daniel
authors.initials: D
authors.lastname: Fortin
authors.forename: Paul-Ludovic
authors.initials: PL
authors.lastname: Karsenti
authors.forename: Pierre D
authors.initials: PD
authors.lastname: Harvey