Chemically regulating Rh(i)-Bodipy photoredox switches

2014 ◽  
Vol 50 (52) ◽  
pp. 6850-6852 ◽  
Author(s):  
A. M. Lifschitz ◽  
R. M. Young ◽  
J. Mendez-Arroyo ◽  
V. V. Roznyatovskiy ◽  
C. M. McGuirk ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Redox Potential ◽  
Photoinduced Electron Transfer ◽  
Coordination Complexes ◽  
Anionic Ligands

Photoinduced electron transfer from a Rh(i) center to an excited Bodipy unit within coordination complexes is regulated in situ by affecting the redox potential of either moiety thought the introduction of neutral and anionic ligands.

scholarly journals Dithienylpyrrole Electrografting on a Surface through the Electroreduction of Diazonium Salts

Electrochem ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 20-31
Author(s):  
Thi Huong Le ◽  
Van Quyen Nguyen ◽  
Gaelle Trippe-Allard ◽  
Jean-Christophe Lacroix ◽  
Pascal Martin
Keyword(s):  
Electron Transfer ◽  
Redox Potential ◽  
Diazonium Salts ◽  
Organic Thin Film ◽  
Organic Film ◽  
Aniline Derivative ◽  
Standard Redox Potential ◽  
Key Issues ◽  
Adhesion Process

The control of the interface and the adhesion process are key issues for the development of new application based on electrochromic materials. In this work the functionalization of an electrode’s surface through electroreduction of diazonium generated in situ from 4-(2,5-di-thiophen-2-yl-pyrrol-1-yl)-phenylamine (SNS-An) has been proposed. The synthesis of the aniline derivative SNS-An was performed and the electrografting was investigated by cyclic voltammetry on various electrodes. Then the organic thin film was fully characterized by several techniques and XPS analysis confirms the presence of an organic film based on the chemical composition of the starting monomer and allows an estimation of its thickness confirmed by AFM scratching measurements. Depending on the number of electrodeposition cycles, the thickness varies from 2 nm to 10 nm, which corresponds to a few grafted oligomers. In addition, the grafted film showed a good electrochemical stability depending on the scan rates up to 400 V/s and the electrochemical response of the modified electrode towards several redox probes showed that the attached layer acts as a conductive switch. Therefore, the electrode behaves as a barrier to electron transfer when the standard redox potential of the probe is below the layer switching potential, whereas the layer can be considered as transparent towards the electron transfer for redox probes with a redox potential above it.

In Situ Switching of Photoinduced Electron Transfer Direction by Regulating the Redox State in Fullerene-Based Dyads

2020 ◽  
Vol 142 (9) ◽  
pp. 4411-4418 ◽  
Author(s):  
Yongqiang Chai ◽  
Xiaolong Liu ◽  
Bo Wu ◽  
Liping Liu ◽  
Zhuan Wang ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Redox State ◽  
Transfer Direction

In Situ Lipid Membrane Formation Triggered by Intramolecular Photoinduced Electron Transfer

Langmuir ◽  
2017 ◽  
Vol 34 (3) ◽  
pp. 750-755 ◽  
Author(s):  
Takafumi Enomoto ◽  
Roberto J. Brea ◽  
Ahanjit Bhattacharya ◽  
Neal K. Devaraj
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Lipid Membrane ◽  
Membrane Formation
Sign in / Sign up

Export Citation Format

Share Document