title: Metal-Chelating N,N'-Bis(4-dimethylaminophenyl)acetamidinyl Radical: A New Chromophore for the Near-Infrared Region.
abstract: A new non-innocent ligand redox system, N,N'-bis(4-dimethylaminophenyl) substituted acetamidinato/acetamidinyl, has been designed and described by example of structurally and spectroscopically characterized ruthenium complexes. The hitherto unreported ligand is responsible for rather intense and narrow absorptions in the near-infrared region of the one- and two-electron oxidized forms. The spectroscopic, computational, and first structural characterization of an amidinyl radical complex adds to the list of established N-based radical ligands.
authors.affiliation: Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart (Germany).
authors.forename: Fabian
authors.initials: F
authors.lastname: Ehret
authors.affiliation: Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart (Germany).
authors.forename: Martina
authors.initials: M
authors.lastname: Bubrin
authors.affiliation: J. Heyrovský Institute of Physical Chemistry, v.v.i. Academy of Sciences of the Czech Republic, Dolejškova 3, 18223 Prague (Czech Republic).
authors.forename: Stanislav
authors.initials: S
authors.lastname: Záliš
authors.affiliation: Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70550 Stuttgart (Germany). kaim@iac.uni-stuttgart.de.
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Kaim
keywords: amidinyl; chromophores; near infrared; radical ions; ruthenium