title: Bis(aminoaryl) Carbon-Bridged Oligo(phenylenevinylene)s Expand the Limits of Electronic Couplings.
abstract: Carbon-bridged bis(aminoaryl) oligo(para-phenylenevinylene)s have been prepared and their optical, electrochemical, and structural properties analyzed. Their radical cations are class III and class II mixed-valence systems, depending on the molecular size, and they show electronic couplings which are among the largest for the self-exchange reaction of purely organic molecules. In their dication states, the antiferromagnetic coupling is progressively tuned with size from quinoidal closed-shell to open-shell biradicals. The data prove that the electronic coupling in the radical cations and the singlet-triplet gap in the dications show similar small attenuation factors, thus allowing charge/spin transfer over rather large distances.
authors.affiliation: Department of Physical Chemistry, University of Málaga, 29071, Málaga, Spain.
authors.forename: Paula Mayorga
authors.initials: PM
authors.lastname: Burrezo
authors.affiliation: Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors.forename: Nai-Ti
authors.initials: NT
authors.lastname: Lin
authors.affiliation: Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Nakabayashi
authors.affiliation: Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors.forename: Shin-Ichi
authors.initials: SI
authors.lastname: Ohkoshi
authors.affiliation: Dpto. Física, Ingeniería de Sistemas y Teoría de la Señal, Dpto. Óptica and Dpto de Física Aplicada and Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante, 03080, Spain.
authors.forename: Eva M
authors.initials: EM
authors.lastname: Calzado
authors.affiliation: Dpto. Física, Ingeniería de Sistemas y Teoría de la Señal, Dpto. Óptica and Dpto de Física Aplicada and Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante, 03080, Spain.
authors.forename: Pedro G
authors.initials: PG
authors.lastname: Boj
authors.affiliation: Dpto. Física, Ingeniería de Sistemas y Teoría de la Señal, Dpto. Óptica and Dpto de Física Aplicada and Instituto Universitario de Materiales de Alicante, Universidad de Alicante, Alicante, 03080, Spain.
authors.forename: María A
authors.initials: MA
authors.lastname: Díaz García
authors.affiliation: Department of Molecular Nanoscience and Organic Materials, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus de la UAB, Bellaterra, 08193, Spain.
authors.forename: Carlos
authors.initials: C
authors.lastname: Franco
authors.affiliation: Department of Molecular Nanoscience and Organic Materials, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus de la UAB, Bellaterra, 08193, Spain.
authors.forename: Concepciò
authors.initials: C
authors.lastname: Rovira
authors.affiliation: Department of Molecular Nanoscience and Organic Materials, Institut de Ciència de Materials de Barcelona (ICMAB-CSIC) and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Campus de la UAB, Bellaterra, 08193, Spain.
authors.forename: Jaume
authors.initials: J
authors.lastname: Veciana
authors.affiliation: Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Moos
authors.affiliation: Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.
authors.forename: Christoph
authors.initials: C
authors.lastname: Lambert
authors.affiliation: Department of Physical Chemistry, University of Málaga, 29071, Málaga, Spain.
authors.forename: Juan T
authors.initials: JT
authors.lastname: López Navarrete
authors.affiliation: Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.|Present address: Department of Chemistry, Faculty of Science, Kanagawa University, Kanagawa, 259-1293, Japan.
authors.forename: Hayato
authors.initials: H
authors.lastname: Tsuji
authors.affiliation: Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
authors.forename: Eiichi
authors.initials: E
authors.lastname: Nakamura
authors.affiliation: Department of Physical Chemistry, University of Málaga, 29071, Málaga, Spain.
authors.forename: Juan
authors.initials: J
authors.lastname: Casado
keywords: absorption; charge transfer; oligomerization; radicals; structure determination