4.7 Article

Inversion of donor-acceptor roles in photoinduced intervalence charge transfers

Journal

CHEMICAL COMMUNICATIONS
Volume 55, Issue 53, Pages 7659-7662

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c9cc03483h

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Funding

  1. University of Buenos Aires [UBACyT 20020130100534BA, UBACYT 20020170100295BA]
  2. CONICET [PIP 112-20150100394CO]
  3. ANPCyT [PICT 2013 00069]
  4. scholarship Estimulo a las Vocaciones Cientificas'' from Consejo Interuniversitario Nacional (EVC-CIN)

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Upon MLCT photoexcitation, {(tpy)Ru} becomes the electron acceptor in the mixed valence {(tpy(-))RuIII-delta-NC-MII+delta} moiety, reversing its role as the electron donor in the ground-state mixed valence analogue. Photoinduced mixed valence interactions can be tuned to obtain extended lifetimes and higher emission quantum yields, beneficial in supramolecular energy conversion schemes.

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