Nature of the lowest excited states of neutral polyenyl radicals and polyene radical cations

2009 ◽  
Vol 131 (14) ◽  
pp. 144311 ◽  
Author(s):  
Jan Hendrik Starcke ◽  
Michael Wormit ◽  
Andreas Dreuw
Keyword(s):  
Excited States ◽  
Radical Cations

Isomerization Behavior of Halostilbene Radical Cations in the Excited States. Two-Color Photochemistry of Stilbene Derivatives

1994 ◽  
Vol 23 (8) ◽  
pp. 1371-1374 ◽  
Author(s):  
Yasunao Kuriyama ◽  
Fumiko Hashimoto ◽  
Masahiro Tsuchiya ◽  
Hirochika Sakuragi ◽  
Katsumi Tokumaru
Keyword(s):  
Excited States ◽  
Radical Cations ◽  
Stilbene Derivatives

Excited states in polyene radical cations. An ab initio theoretical study

1995 ◽  
Vol 236 (1-2) ◽  
pp. 167-176 ◽  
Author(s):  
M.P. Fülscher ◽  
S. Matzinger ◽  
T. Bally
Keyword(s):  
Ab Initio ◽  
Excited States ◽  
Theoretical Study ◽  
Radical Cations

Predicted geometries of porphyrin excited states and radical cations and anions

1991 ◽  
Vol 95 (24) ◽  
pp. 9728-9736 ◽  
Author(s):  
Kristine Prendergast ◽  
Thomas G. Spiro
Keyword(s):  
Excited States ◽  
Radical Cations

scholarly journals Hole-Mediated PhotoRedox Catalysis: Tris(p-Substituted)biarylaminium Radical Cations as Tunable, Precomplexing and Potent Photooxidants

2020 ◽  
Author(s):  
Shangze Wu ◽  
Jonas Zurauskas ◽  
Michal Domanski ◽  
Patrick Hitzfeld ◽  
Valeria Butera ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Excited State ◽  
Excited States ◽  
Organic Molecules ◽  
Radical Cations ◽  
Single Electron Transfer ◽  
Photoredox Catalysis ◽  
Small Organic Molecules ◽  
Fundamental Limitations ◽  
Ion Species

<p>Electrochemically-mediated Photoredox Catalysis emerged as a powerful synthetic technique in recent years, overcoming fundamental limitations of electrochemistry and photoredox catalysis in the single electron transfer activation of small organic molecules. However, the mechanism of how photoexcited radical ion species with ultrashort (picosecond-order) lifetimes could ever undergo productive photochemistry has eluded synthetic chemists. We report tri(<i>para</i>-substituted)biarylamines as a tunable class of electroactivated photocatalysts that become superoxidants in their photoexcited states, even able to oxidize molecules (such as dichlorobenzene and trifluorotoluene) beyond the solvent window limits of cyclic voltammetry. Furthermore, we demonstrate that precomplexation not only permits the excited state photochemistry of tris(<i>para</i>-substituted)biarylaminium cations, but enables and rationalizes the surprising photochemistry of their <i>higher-order</i> doublet (D<i><sub>n</sub></i>) excited states.</p>

Excited states of polyene radical cations: limitations of Koopmans' theorem

1984 ◽  
Vol 106 (14) ◽  
pp. 3927-3933 ◽  
Author(s):  
Thomas Bally ◽  
Stephan Nitsche ◽  
Kuno Roth ◽  
Edwin Haselbach
Keyword(s):  
Excited States ◽  
Radical Cations ◽  
Koopmans Theorem

Resonance Raman Studies of Porphyrin Radical Cations, Excited States, and Ligation Photodynamics

1986 ◽  
pp. 248-265 ◽  
Author(s):  
Dongho Kim ◽  
Lisa Miller ◽  
Oliver Su ◽  
James Terner ◽  
Thomas G. Spiro
Keyword(s):  
Excited States ◽  
Resonance Raman ◽  
Radical Cations
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