Electron transfer processes. reactions of 5-nitrofuryl derivatives going by anionradical mechanism

1980 ◽  
Vol 45 (12) ◽  
pp. 3347-3353 ◽  
Author(s):  
Josef Prousek
Keyword(s):  
Electron Transfer ◽  
Electron Donors ◽  
Basic Medium ◽  
Transfer Processes ◽  
Electron Transfer Processes

5-Nitrofurfuryl nitrate and bromide (Ia,b) react with electron donors to give 1,2-bis(5-nitro-2-furyl)ethane (II), 1,2-bis(5-nitro-2-furyl)ethylene (III), 5-nitro-2-methylfurane (IV), products of SRN1 reactions Va, Vb and other derivatives. Formation of the derivatives II to V is discussed on the basis of anionradical mechanism. 4-Nitrobenzyl bromide reacts by a SRN1 reaction with 5-nitrofurfuryl phenyl sulphone (Va) in basic medium to give 1-(5-nitro-2-furyl)-1-phenylsulphonyl-2-(4-nitrophenyl)ethane (VIII) and 1-(5-nitro-2-furyl)-2-(4-nitrophenyl)ethylene (IX).

Supramolecular photocurrent-generating systems using porphyrin composite materials

2007 ◽  
Vol 11 (05) ◽  
pp. 342-347 ◽  
Author(s):  
Toshifumi Konishi ◽  
Masaki Horie ◽  
Tatsuo Wada ◽  
Shin Ogasawara ◽  
Jun-ichi Kikuchi ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Photovoltaic Cells ◽  
Three Dimensional ◽  
Electron Donors ◽  
Supramolecular Interactions ◽  
Kinetic Control ◽  
Molecular Device ◽  
Transfer Processes ◽  
Electron Transfer Processes

Supramolecular design principles for a porphyrin-sensitized, wet-type solar cell are described. To construct efficient organic photocurrent-generating systems, the following two important targets exist: (i) kinetic control of photoinduced electron-transfer processes by spatial, three-dimensional alignment of photo-functional molecules (sensitizers, electron donors, acceptors, and mediators) and (ii) highly dense deposition of composites of the photo-functional molecules on an electrode. These objectives can be achieved by tailoring a photoactive multilayer using supramolecular interactions, such as molecular adsorption, inclusion, coordination, and recognition. Using these interactions, it is expected that the reduction of the costs of synthesis and the combinational fabrication of a simplified-molecular device will become possible. In addition, recent approaches toward the construction of supramolecular porphyrin-sensitized photovoltaic cells are introduced.

scholarly journals Three birds, one stone – photo-/piezo-/chemochromism in one conjugated nanoporous ionic organic network

2018 ◽  
Vol 6 (34) ◽  
pp. 9065-9070 ◽  
Author(s):  
Jian-Ke Sun ◽  
Ya-Jun Zhang ◽  
Gui-Peng Yu ◽  
Jie Zhang ◽  
Markus Antonietti ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Electron Donors ◽  
Organic Radical ◽  
Nanoporous Material ◽  
One Pot ◽  
Ion Density ◽  
Transfer Processes ◽  
Electron Transfer Processes ◽  
Radical Character

A nanoporous material bearing a high ion density and inherent organic radical character was synthesized by a facile one-pot process, which exhibits photo-, piezo- and chemochromism, driven by the diverse electron transfer processes between the acceptor framework and different electron donors.

scholarly journals RuIII(edta) complexes as molecular redox catalysts in chemical and electrochemical reduction of dioxygen and hydrogen peroxide: inner-sphere versus outer-sphere mechanism

RSC Advances ◽  
2021 ◽  
Vol 11 (35) ◽  
pp. 21359-21366
Author(s):  
Debabrata Chatterjee ◽  
Marta Chrzanowska ◽  
Anna Katafias ◽  
Maria Oszajca ◽  
Rudi van Eldik
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Transfer ◽  
Electrochemical Reduction ◽  
Molecular Oxygen ◽  
Outer Sphere ◽  
Transfer Processes ◽  
Edta Complexes ◽  
Inner Sphere ◽  
Electron Transfer Processes ◽  
Sphere Mechanism

[RuII(edta)(L)]2–, where edta4– =ethylenediaminetetraacetate; L = pyrazine (pz) and H2O, can reduce molecular oxygen sequentially to hydrogen peroxide and further to water by involving both outer-sphere and inner-sphere electron transfer processes.

Photoinduced electron transfer in mechanically interlocked suit[3]ane systems

2021 ◽  
Author(s):  
Anton J Stasyuk ◽  
Olga A. Stasyuk ◽  
Miquel Solà ◽  
Alexander Voityuk
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
New Class ◽  
Transfer Processes ◽  
Two Component ◽  
Electron Transfer Processes

Suitanes, a new class of two-component mechanically interlocked systems, have recently been developed. In this work, we report a detailed study of photoinduced electron transfer processes in the suit[3]anes consisting...

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