%0 Journal Article %T Addressing Charge-Transfer and Locally-Excited States in a Twisted Biphenyl Push-Pull Chromophore %+ Università degli studi di Parma = University of Parma (UNIPR) %+ European Laboratory for Non-Linear Spectroscopy (LENS) %+ Institut des Sciences Moléculaires (ISM) %+ Institut des Sciences Chimiques de Rennes (ISCR) %A Campioli, Elisa %A Sanyal, Somananda %A Marcelli, Agnese %A Di Donato, Mariangela %A Blanchard-Desce, Mireille %A Mongin, Olivier %A Painelli, Anna %A Terenziani, Francesca %Z RBFR10Y5VW, Italian Ministero dell'Istruzione, dell'Università e della Ricerca (MIUR) %Z DM 11/05/2017 n. 262, "Dipartimenti di Eccellenza" %Z 812872, European Union's Horizon 2020 research and innovation programme %Z HPC (High Performance Computing) facility of the University of Parma, Italy %< avec comité de lecture %@ 1439-4235 %J ChemPhysChem %I Wiley-VCH Verlag %V 20 %N 21 %P 2860-2873 %8 2019 %D 2019 %R 10.1002/cphc.201900703 %M 31453644 %K dual fluorescence %K electron transfer %K solvation dynamics %K theoretical modelling %K time-resolved spectroscopy %Z Chemical SciencesJournal articles %X We present the synthesis and spectroscopic characterization of a twisted push-pull biphenyl molecule undergoing photoinduced electron transfer. Steady-state and transient absorption spectra suggest, in this rigid molecular structure, a subtle interplay between locally-excited and charge-transfer states, whose equilibrium and dynamics is only driven by solvation. A theoretical model is presented for the solvation dynamics and, with the support of quantum chemical calculations, we demonstrate the existence of two sets of states, having either local or charge-transfer character, that only "communicate" thanks to solvation, which is the sole driving force for the charge-separation process. %G English %2 https://univ-rennes.hal.science/hal-02307078/document %2 https://univ-rennes.hal.science/hal-02307078/file/Campioli%20et%20al-2019-Addressing%20charge-transfer%20and%20locally-excited%20states%20in%20a%20twisted%20biphenyl.pdf %L hal-02307078 %U https://univ-rennes.hal.science/hal-02307078 %~ UNIV-RENNES1 %~ CNRS %~ INSA-RENNES %~ ENSC-RENNES %~ UNIV-BORDEAUX %~ ISCR %~ SCR_CPM %~ STATS-UR1 %~ UR1-SPM %~ INC-CNRS %~ UR1-UFR-SPM %~ UR1-HAL %~ ISCR-CORINT %~ UR1-SDLM %~ TEST-UR-CSS %~ UNIV-RENNES %~ INSA-GROUPE %~ ISCR-CORINT1 %~ TEST-HALCNRS %~ UR1-MMS %~ ISCR-CORINT3 %~ TEST2-HALCNRS