Combined Picosecond Time-Resolved UV–Vis and NMR Techniques Used for Investigation of the Excited State Intramolecular Triplet–Triplet Energy Transfer

2019 ◽  
Vol 123 (32) ◽  
pp. 6978-6985 ◽  
Author(s):  
Jacek Dobkowski ◽  
Alexandr Gorski ◽  
Michał Kijak ◽  
Mariusz Pietrzak ◽  
Kipras Redeckas ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Excited State ◽  
Triplet Energy ◽  
Time Resolved ◽  
Nmr Techniques ◽  
Triplet Energy Transfer

scholarly journals Sensitization of ultra-long-range excited-state electron transfer by energy transfer in a polymerized film

2012 ◽  
Vol 109 (38) ◽  
pp. 15132-15135 ◽  
Author(s):  
Akitaka Ito ◽  
David J. Stewart ◽  
Zhen Fang ◽  
M. Kyle Brennaman ◽  
Thomas J. Meyer
Keyword(s):  
Electron Transfer ◽  
Energy Transfer ◽  
Excited State ◽  
Charge Transfer ◽  
Long Range ◽  
Methyl Viologen ◽  
Polymer Network ◽  
Triplet Energy ◽  
Ligand Charge Transfer ◽  
Triplet Energy Transfer

Distance-dependent energy transfer occurs from the Metal-to-Ligand Charge Transfer (MLCT) excited state to an anthracene-acrylate derivative (Acr-An) incorporated into the polymer network of a semirigid poly(ethyleneglycol)dimethacrylate monolith. Following excitation, to Acr-An triplet energy transfer occurs followed by long-range, Acr-3An—Acr-An → Acr-An—Acr-3An, energy migration. With methyl viologen dication (MV2+) added as a trap, Acr-3An + MV2+ → Acr-An+ + MV+ electron transfer results in sensitized electron transfer quenching over a distance of approximately 90 Å.

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