Transient Absorption Spectroscopy of the Electron Transfer Step in the Photochemically Activated Polymerizations of N-ethylcarbazole and 9-phenylcarbazole.

2021 ◽  
Author(s):  
Georgia Thornton ◽  
Ryan Phelps ◽  
Andrew Orr-Ewing
Keyword(s):  
Electron Transfer ◽  
Radical Cation ◽  
Absorption Spectroscopy ◽  
Electron Acceptor ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Transfer Step

The polymerization of photoexcited N-ethylcarbazole (N-EC) in the presence of an electron acceptor begins with an electron transfer (ET) step to generate a radical cation of N-EC (N-EC+.). Here, the...

scholarly journals Interaction of light with a non-covalent zinc porphyrin–graphene oxide nanohybrid

2020 ◽  
Vol 22 (24) ◽  
pp. 13456-13466
Author(s):  
Ewelina Gacka ◽  
Gotard Burdzinski ◽  
Bronisław Marciniak ◽  
Adam Kubas ◽  
Anna Lewandowska-Andralojc
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Absorption Spectroscopy ◽  
Fast Electron ◽  
Transient Absorption ◽  
Singlet State ◽  
Transient Absorption Spectroscopy ◽  
Time Resolved ◽  
Zinc Porphyrin

Fast electron transfer from the photoexcited ZnTPPH singlet state to GO sheets was detected by ultrafast time-resolved transient absorption spectroscopy.

Photoexcitation dynamics of p-nitroaniline and N,N-dimethyl-p-nitroaniline in 1-alkyl-3-methylimidazolium-cation based ionic liquids with different alkyl-chain lengths

2017 ◽  
Vol 19 (33) ◽  
pp. 22161-22168 ◽  
Author(s):  
Y. Kimura ◽  
S. Ibaraki ◽  
R. Hirano ◽  
Y. Sugita ◽  
Y. Yasaka ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Ionic Liquids ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Vibrational Energy ◽  
Alkyl Chain ◽  
Transient Absorption Spectroscopy ◽  
Vibrational Energy Relaxation ◽  
Back Electron Transfer ◽  
Chain Lengths

Back electron transfer and vibrational energy relaxation of p-nitroaniline and N,N-dimethyl-p-nitroaniline in ionic liquids were investigated using transient absorption spectroscopy.

Roles of adsorption sites in electron transfer from CdS quantum dots to molecular catalyst cobaloxime studied by time-resolved spectroscopy

2016 ◽  
Vol 18 (26) ◽  
pp. 17389-17397 ◽  
Author(s):  
Yun Ye ◽  
Yuxing Xu ◽  
Lei Huang ◽  
Dayong Fan ◽  
Zhaochi Feng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Transfer ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Transient Absorption Spectroscopy ◽  
Cds Quantum Dots ◽  
Time Resolved ◽  
Time Resolved Spectroscopy ◽  
Molecular Catalyst ◽  
Adsorption Sites

Electron transfer from CdS quantum dots (QDs) to cobaloxime (Co(dmgH)2pyCl) is demonstrated by transient absorption spectroscopy (TAS), and further confirmed using photoluminescence (PL) techniques.

Cascading electron and hole transfer dynamics in a CdS/CdTe core–shell sensitized with bromo-pyrogallol red (Br-PGR): slow charge recombination in type II regime

Nanoscale ◽  
2015 ◽  
Vol 7 (6) ◽  
pp. 2698-2707 ◽  
Author(s):  
Partha Maity ◽  
Tushar Debnath ◽  
Uday Chopra ◽  
Hirendra Nath Ghosh
Keyword(s):  
Electron Transfer ◽  
Absorption Spectroscopy ◽  
Transient Absorption ◽  
Charge Recombination ◽  
Transient Absorption Spectroscopy ◽  
Core Shell ◽  
Type Ii ◽  
Pyrogallol Red ◽  
First Time ◽  
Cdte Core

For the first time ultrafast cascading hole and electron transfer dynamics in a CdS/CdTe type II core–shell sensitized with a molecular adsorbate (Br-PGR) have been demonstrated using transient absorption spectroscopy.

Intramolecular electron transfer reactions in meso-(4-nitrophenyl)-substituted subporphyrins

2016 ◽  
Vol 52 (7) ◽  
pp. 1424-1427 ◽  
Author(s):  
Graeme Copley ◽  
Juwon Oh ◽  
Kota Yoshida ◽  
Daiki Shimizu ◽  
Dongho Kim ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Absorption Spectroscopy ◽  
Charge Separation ◽  
Transient Absorption ◽  
Charge Recombination ◽  
Transient Absorption Spectroscopy ◽  
Transfer Reactions ◽  
Intramolecular Electron Transfer ◽  
Time Resolved ◽  
Electron Transfer Reactions

A2B-type meso-(4-nitrophenyl)-substituted subporphyrins have been synthesized and shown to undergo very fast photoinduced intramolecular charge separation (CS) and charge recombination (CR) between the subporphyrin core and the meso-4-nitrophenyl group in CH2Cl2 as probed by femtosecond time-resolved transient absorption spectroscopy.

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