Journal ArticleDOI
Photoinduced Electron Transfer in Solution: Exciplex and Radical Ion Pair Formation Free Enthalpies and their Solvent Dependence
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This article is published in Zeitschrift für Physikalische Chemie.The article was published on 1982-01-01. It has received 940 citations till now. The article focuses on the topics: Photoinduced electron transfer & Radical ion.read more
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Ultrafast Charge Recombination of Photogenerated Ion Pairs to an Electronic Excited State
TL;DR: In this paper, the dynamics of charge recombination of ion pairs formed upon electron-transfer quenching of Zn tetraphenylporphine (ZnTPP) in the S2 state has been investigated by fluorescence upconversion.
Journal ArticleDOI
Charge recombination versus charge separation in donor-bridge-acceptor systems
Joanna Wiberg,Lijun Guo,Karin Pettersson,Daniel Nilsson,Thomas Ljungdahl,Jerker Mårtensson,Bo Albinsson +6 more
TL;DR: It is shown that the exponential distance dependence increases slightly for CR compared to that for CS as a result of the increased tunneling barrier height for this reaction, in accordance with the McConnell superexchange model.
Journal ArticleDOI
Efficient charge separation in porphyrin-fullerene-ligand complexes.
TL;DR: It has been found that upon irradiation in toluene, a highly efficient triplet-triplet energy transfer governs the deactivation of the photoexcited [Ru(tpp)], while electron transfer (ET) from the porphyrin to the fullerene prevails in polar solvents.
Journal ArticleDOI
Ultrafast Photoinduced Symmetry-Breaking Charge Separation and Electron Sharing in Perylenediimide Molecular Triangles.
Yilei Wu,Ryan M. Young,Marco Frasconi,Severin T. Schneebeli,Peter Spenst,Daniel M. Gardner,Kristen E. Brown,Frank Würthner,J. Fraser Stoddart,Michael R. Wasielewski +9 more
TL;DR: Fast subsequent intramolecular electron/hole hopping can equilibrate the six possible energetically degenerate ion-pair states, as suggested by electron paramagnetic resonance/electron-nuclear double resonance spectroscopy, which shows that one-electron reduction of the PDI triangle results in complete electron sharing among the three PDIs.
Journal ArticleDOI
Direct Observation of Excimer-Mediated Intramolecular Electron Transfer in a Cofacially-Stacked Perylene Bisimide Pair
Jooyoung Sung,Agnieszka Nowak-Król,Felix Schlosser,Benjamin Fimmel,Woojae Kim,Dongho Kim,Frank Würthner +6 more
TL;DR: The excimer state effectuates the efficient charge transfer in the cofacially stacked PBI dimer and is elucidated as the driver of electron transfer between energetically equivalent PBIs.
References
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Journal ArticleDOI
Dipolar Nature of Molecular Complexes Formed in the Excited State
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Solvent, isotope, and magnetic field effects in the geminate recombination of radical ion pairs
TL;DR: In this article, the magnetic field dependence of the geminate recombination triplet yield of radical ion pairs generated via photoinduced electron transfer in polar solvents is investigated for the systems pyrene/N, Ndimethylaniline (Py/DMA), pyrene 3,5,dimethoxy•N,Ndimethynylinox•N and pyrene DMDMA, and the perdeuterated system Py•d10/dMA•d11.
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Bindungszustand und Fluoreszenzspektren von Hetero-Excimeren
Dieter Rehm,Albert Weller +1 more
TL;DR: The structureless fluorescence spectra of more than one hundred heteroexcimers (unsymmetrical molecular complexes which are stable in the excited state) were measured in hexane or other inert solvents.