Tuning electron transfer in supramolecular nano-architectures made of fullerenes and porphyrins

Nanoscale ◽  
2019 ◽  
Vol 11 (22) ◽  
pp. 10782-10790 ◽  
Author(s):  
Bingzhe Wang ◽  
Stefan Bauroth ◽  
Avishek Saha ◽  
Muqing Chen ◽  
Timothy Clark ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Electron Acceptors ◽  
Electron Donors ◽  
Current Work ◽  
Ligand Coordination ◽  
Self Assembled ◽  
Metal Ligand

The current work focuses on self-assembled nano-architectures in which metal–ligand coordination between ZnP and ZnP-TDP as electron donors, and C60 as electron acceptors have been designed and investigated.

Evidence for electron transfer of excited indigo dyes with both electron-acceptors and electron-donors

1985 ◽  
Vol 6 (3) ◽  
pp. 163-175 ◽  
Author(s):  
Joseph Pouliquen ◽  
Véronique Wintgens ◽  
Vicente Toscano ◽  
Jean Kossanyi
Keyword(s):  
Electron Transfer ◽  
Electron Acceptors ◽  
Electron Donors ◽  
Indigo Dyes

Photoinduced electron transfer across an organic molecular wall: octa acid encapsulated ESIPT dyes as electron donors

2017 ◽  
Vol 16 (6) ◽  
pp. 840-844 ◽  
Author(s):  
Fabiano S. Santos ◽  
Elamparuthi Ramasamy ◽  
V. Ramamurthy ◽  
Fabiano S. Rodembusch
Keyword(s):  
Aqueous Solution ◽  
Electron Transfer ◽  
Proton Transfer ◽  
Photoinduced Electron Transfer ◽  
Electron Acceptors ◽  
Water Soluble ◽  
Electron Donors ◽  
Octa Acid

Efficient photoinduced electron transfer from proton transfer dyes encapsulated within water soluble supramolecular host octa acid to electron acceptors present outside the capsule was observed in aqueous solution.

scholarly journals Electron transfer reaction and demetalation of phthalocyanines

2000 ◽  
Vol 2 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Jean Kossanyi ◽  
Driss Chahraoui
Keyword(s):  
Electron Transfer ◽  
Rate Constant ◽  
Transfer Reaction ◽  
Fluorescence Emission ◽  
Radical Cations ◽  
Electron Transfer Reaction ◽  
Electron Acceptors ◽  
Electron Donors ◽  
Polar Solvents ◽  
The One

An electron-transfer reaction takes place in the ground state between phthalocyanines (as electron-donors) and pyrylium cations (as electron-acceptors) in polar solvents, reaction which leads to the phthalocyanine radical-cations as evidenced by its absorption spectra identical to the one of the species formed by electrochemical oxidation.The fluorescence emission of the phthalocyanines is quenched by electron-acceptors (principally quinones). The free energy changeΔGCTof the electron-transfer reaction has been evaluated for each electron acceptor with a solvation energy of 0.14 eV in the case of dimethylformamide and 1.2 eV in that of dichloromethane. The rate constant of the quenching of the phthalocyanines singlet excited state by a series of electronacceptors is found to be of the order of1.2−1.5×1010L⋅mol-1s-1.Metalated phthalocyanines are demetalated in the dark by hydroxy-anthraquinones with a rate constant of the order of10−2L⋅mol-1s-1at 292K and which increases (up to7×10−2L⋅mol-1s-1at 349 K) with temperature. The activation energy of the demetalation reaction has been determined to be ca 30kJ⋅mol-1for 1,4-dihydroxyanthraquinone and 35kJ⋅mol-1for 1,2,4-trihydroxyanthraquinone.

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