title: Transient photocyclization in ruthenium(ii) polypyridine complexes of indolamines.
abstract: Ruthenium polypyridine complexes have proved to be useful caging groups for visible-light photodelivery of biomolecules. In most photoreactions, one ligand is expelled upon irradiation, yielding ruthenium mono-aqua complexes and no other photoproduct. In this work we show that a long-lived transient photoproduct is generated when the ruthenium complexes involve indolamines. The spatial conformation of this species is compatible with a cyclic structure that contains both the amine and the normally non-coordinating aromatic ring coordinated to the ruthenium center.
authors.affiliation: Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pabellón 2 AR1428EHA Buenos Aires, Argentina. rober@qi.fcen.uba.ar.
authors.forename: G
authors.initials: G
authors.lastname: Carrone
authors.affiliation: Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pabellón 2 AR1428EHA Buenos Aires, Argentina. rober@qi.fcen.uba.ar.
authors.forename: L
authors.initials: L
authors.lastname: Zayat
authors.affiliation: Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pabellón 2 AR1428EHA Buenos Aires, Argentina. rober@qi.fcen.uba.ar.
authors.forename: L D
authors.initials: LD
authors.lastname: Slep
authors.affiliation: Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pabellón 2 AR1428EHA Buenos Aires, Argentina. rober@qi.fcen.uba.ar.
authors.forename: R
authors.initials: R
authors.lastname: Etchenique