title: 8-AminoBODIPYs: cyanines or hemicyanines? The effect of the coplanarity of the amino group on their optical properties.
abstract: The role of the amino group twisting ability in the BODIPY photophysics for nonsterically hindered and constrained molecular structures was studied. When a coplanar disposition of the amino and the BODIPY core is feasible, a hemicyanine-like delocalized π-system gives rise to novel blue and efficient BODIPY laser dyes. The key role of such rotamer is confirmed by newly synthesized derivatives where the amino and the BODIPY core are electronically decoupled by steric repulsions.
authors.affiliation: Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato, GTO, 36050, Mexico.
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Osorio-Martínez
authors.forename: Arlette
authors.initials: A
authors.lastname: Urías-Benavides
authors.forename: C F Azael
authors.initials: CF
authors.lastname: Gómez-Durán
authors.forename: Jorge
authors.initials: J
authors.lastname: Bañuelos
authors.forename: Ixone
authors.initials: I
authors.lastname: Esnal
authors.forename: Iñigo
authors.initials: I
authors.lastname: López Arbeloa
authors.forename: Eduardo
authors.initials: E
authors.lastname: Peña-Cabrera