Reversible Switching of Redox-Active Molecular Orbitals and Electron Transfer Pathways in CuASites of Cytochrome cOxidase

2015 ◽  
Vol 54 (33) ◽  
pp. 9555-9559 ◽  
Author(s):  
Ulises Zitare ◽  
Damián Alvarez-Paggi ◽  
Marcos N. Morgada ◽  
Luciano A. Abriata ◽  
Alejandro J. Vila ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Molecular Orbitals ◽  
Redox Active ◽  
Electron Transfer Pathways

Reversible Switching of Redox-Active Molecular Orbitals and Electron Transfer Pathways in CuASites of Cytochrome cOxidase

2015 ◽  
Vol 127 (33) ◽  
pp. 9691-9695 ◽  
Author(s):  
Ulises Zitare ◽  
Damián Alvarez-Paggi ◽  
Marcos N. Morgada ◽  
Luciano A. Abriata ◽  
Alejandro J. Vila ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Molecular Orbitals ◽  
Redox Active ◽  
Electron Transfer Pathways

scholarly journals Redox potentials along the redox-active low-barrier H-bonds in electron transfer pathways

2020 ◽  
Vol 22 (44) ◽  
pp. 25467-25473 ◽  
Author(s):  
Keisuke Saito ◽  
Manoj Mandal ◽  
Hiroshi Ishikita
Keyword(s):  
Electron Transfer ◽  
Proton Transfer ◽  
Redox Potential ◽  
Driving Force ◽  
Electronic Coupling ◽  
Redox Potentials ◽  
Redox Active ◽  
Electron Transfer Pathways

Local proton transfer along redox-active low-barrier H-bonds can alter the driving force or electronic coupling for electron transfer, as the redox potential values depend on the H+ position in low-barrier H-bonds.

scholarly journals Electron transfer pathways in photoexcited lanthanide(III) complexes of picolinate ligands

2021 ◽  
Author(s):  
Daniel Kovacs ◽  
Daniel Kocsi ◽  
Jordann A. L. Wells ◽  
Salauat R. Kiraev ◽  
Eszter Borbas
Keyword(s):  
Electron Transfer ◽  
Metal Binding ◽  
Binding Sites ◽  
Secondary Amide ◽  
Metal Binding Sites ◽  
Electron Transfer Pathways

A series of luminescent lanthanide(III) complexes consisting of 1,4,7-triazacyclononane frameworks and three secondary amide-linked carbostyril antennae were synthesised. The metal binding sites were augmented with two pyridylcarboxylate donors yielding octadentate...

scholarly journals Insight to Microbial Fe(III) Reduction Mediated by Redox-Active Humic Acids with Varied Redox Potentials

2021 ◽  
Vol 18 (13) ◽  
pp. 6807
Author(s):  
Jingtao Duan ◽  
Zhiyuan Xu ◽  
Zhen Yang ◽  
Jie Jiang
Keyword(s):  
Molecular Weight ◽  
Electron Transfer ◽  
Humic Acids ◽  
Weight Fraction ◽  
Electrochemical Analysis ◽  
Microbial Reduction ◽  
Redox Potentials ◽  
Groundwater Environment ◽  
Redox Active ◽  
Different Molecular Weight

Redox-active humic acids (HA) are ubiquitous in terrestrial and aquatic systems and are involved in numerous electron transfer reactions affecting biogeochemical processes and fates of pollutants in soil environments. Redox-active contaminants are trapped in soil micropores (<2 nm) that have limited access to microbes and HA. Therefore, the contaminants whose molecular structure and properties are not damaged accumulate in the soil micropores and become potential pollution sources. Electron transfer capacities (ETC) of HA reflecting redox activities of low molecular weight fraction (LMWF, <2.5) HA can be detected by an electrochemical method, which is related to redox potentials (Eh) in soil and aquatic environments. Nevertheless, electron accepting capacities (EAC) and electron donating capacities (EDC) of these LMWF HA at different Eh are still unknown. EDC and EAC of different molecular weight HA at different Eh were analyzed using electrochemical methods. EAC of LMWF at −0.59 V was 12 times higher than that at −0.49 V, while EAC increased to 2.6 times when the Eh decreased from −0.59 V to −0.69 V. Afterward, LMWF can act as a shuttle to stimulate microbial Fe(III) reduction processes in microbial reduction experiments. Additionally, EAC by electrochemical analysis at a range of −0.49–−0.59 V was comparable to total calculated ETC of different molecular weight fractions of HA by microbial reduction. Therefore, it is indicated that redox-active functional groups that can be reduced at Eh range of −0.49–−0.59 are available to microbial reduction. This finding contributes to a novel perspective in the protection and remediation of the groundwater environment in the biogeochemistry process.

Control of Electron Transfer Pathways in a Dye-Sensitized Solar Cell

2006 ◽  
Vol 97 (20) ◽  
Author(s):  
Ben Brüggemann ◽  
Juan Angel Organero ◽  
Torbjörn Pascher ◽  
Tõnu Pullerits ◽  
Arkady Yartsev
Keyword(s):  
Electron Transfer ◽  
Solar Cell ◽  
Dye Sensitized Solar Cell ◽  
Dye Sensitized ◽  
Electron Transfer Pathways

Hydroquinone/quinone electro- and photochemical interconversion in isolable polypyridylruthenium(II) complexes

2021 ◽  
Author(s):  
Dai Oyama ◽  
Takatoshi Kanno ◽  
Tsugiko Takase
Keyword(s):  
Electron Transfer ◽  
Metal Complexes ◽  
Transfer Reactions ◽  
Electron Transfer Reactions ◽  
Fundamental Knowledge ◽  
Redox Active ◽  
Quinone Complexes

Quinone derivatives and their metal complexes are well-known molecules that participate in electron-transfer reactions relevant to diverse fields. However, the fundamental knowledge on the unique reactivity of redox-active quinone complexes...

Sign in / Sign up

Export Citation Format

Share Document