Amphiphilic copolymers of some aromatic vinyl compounds and an electrolytic monomer as potential media for photosensitized electron transfer: Fluorescence quenching by an amphiphilic electron acceptor in aqueous media

1982 ◽  
Vol 20 (2) ◽  
pp. 467-476 ◽  
Author(s):  
Yoshihiro Itoh ◽  
Yotaro Morishima ◽  
Shun-Ichi Nozakura
Keyword(s):  
Electron Transfer ◽  
Fluorescence Quenching ◽  
Electron Acceptor ◽  
Aqueous Media ◽  
Amphiphilic Copolymers

Photochemistry of Nitracrine and its Analogues: Acridine Derivatives as Electron Donors

1984 ◽  
Vol 39 (2) ◽  
pp. 195-200 ◽  
Author(s):  
J. Biedrzycki ◽  
J. Błażejowski ◽  
J. Szychliński ◽  
A. Ledòchowski
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Fluorescence Quenching ◽  
Triplet State ◽  
Uv Radiation ◽  
Electron Acceptor ◽  
Singlet State ◽  
Electron Donors ◽  
Excited Singlet State ◽  
Excited Singlet

Studies on the electron transfer in the excited state from electron donors: acridine, 9- aminoacridine and its derivatives, including nitracrine and its isomers, to CCl4 as a suitable electron acceptor, were undertaken. UV radiation (λ= 366 nm), absorbed only by acridine bases, generates CI- ions. The fluorescence quenching measurements indicate that no interaction appears between molecules of acridine bases in the excited singlet state and CCl4 molecule. A scheme of photochemical processes is proposed which assumes that the triplet state of the base molecule is the reactive one.

scholarly journals Amphiphilic Copolymers Consisting of Vinylphenanthrene and Cationic Segments. Fluorescence Quenching by Amphiphilic Quenchers in Aqueous Media

1982 ◽  
Vol 14 (11) ◽  
pp. 861-868 ◽  
Author(s):  
Yotaro Morishima ◽  
Tohru Tanaka ◽  
Yoshihiro Itoh ◽  
Shun-ichi Nozakura
Keyword(s):  
Fluorescence Quenching ◽  
Aqueous Media ◽  
Amphiphilic Copolymers

Formation of CT complexes and electron transfer from excited molecules of anthracene derivatives to methylviologen in aqueous and micellar media

1987 ◽  
Vol 52 (7) ◽  
pp. 1658-1665
Author(s):  
Viktor Řehák ◽  
Jana Boledovičová
Keyword(s):  
Electron Transfer ◽  
Complex Formation ◽  
Fluorescence Quenching ◽  
Rate Constant ◽  
Formation Constants ◽  
Dynamic Quenching ◽  
Micellar Media ◽  
Complex Formation Constants ◽  
Anthracene Derivatives ◽  
Ct Complexes

Disodium 1,5- and 1,8-anthracenedisulphonate (ADS) and 9-acetylanthracene form coloured CT complexes with methylviologen (MV2+) in aqueous and micellar media. The complex formation constants and molar absorptivities were determined by the Benesi-Hildebrandt method. In the fluorescence quenching, its static component plays the major role. The dynamic quenching component is determined by the rate constant of electron transfer from the S1 state of ADS to MV2+.

scholarly journals Molecular Engineering for High-Performance Fullerene Broadband Photodetector

2021 ◽  
Author(s):  
Mingming Su ◽  
Yajing Hu ◽  
Ao Yu ◽  
Zhiyao Peng ◽  
Wangtao Long ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Low Temperature ◽  
Electron Acceptor ◽  
Photoinduced Electron Transfer ◽  
High Performance ◽  
Organic Molecules ◽  
Low Cost ◽  
Molecular Engineering ◽  
Temperature Requirement ◽  
High Flexibility

Broadband photodetectors fabricated with organic molecules have the advantages of low cost, high flexibility, easy processing and low-temperature requirement. Fullerene molecules, due to the electron acceptor and photoinduced electron transfer...

Selective chemochromic and chemically-induced photochromic response of a metal–organic framework

2020 ◽  
Vol 56 (44) ◽  
pp. 5929-5932 ◽  
Author(s):  
Peng Li ◽  
Qi Sui ◽  
Meng-Yue Guo ◽  
Shuai-Liang Yang ◽  
Ran Bu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Electron Acceptor ◽  
Photoinduced Electron Transfer ◽  
Color Change ◽  
Metal Organic Framework ◽  
Confined Space ◽  
Chemically Induced ◽  
Metal Organic ◽  
Organic Framework

The MOF provides unique confined space furnished with electron acceptor sites, and exposure to amines/alcohols causes specific and size-selective direct/UV-assisted color change owing to spontaneous/photoinduced electron transfer.

Quantification of Electron Transfer Rates to a Solid Phase Electron Acceptor through the Stages of Biofilm Formation from Single Cells to Multicellular Communities

2010 ◽  
Vol 44 (7) ◽  
pp. 2721-2727 ◽  
Author(s):  
Jeffrey S. McLean ◽  
Greg Wanger ◽  
Yuri A. Gorby ◽  
Martin Wainstein ◽  
Jeff McQuaid ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Electron Acceptor ◽  
Biofilm Formation ◽  
Solid Phase ◽  
Single Cells ◽  
Transfer Rates

Fluoreszenzlöschung alternierender und nicht-alternierender polycyclischer aromatischer Kohlenwasserstoffe durch Nitroverbindungen / Fluorescence Quenching of Alternant and Non-alternant Polycyclic Hydrocarbons by Nitro Compounds

1977 ◽  
Vol 32 (12) ◽  
pp. 1561-1563 ◽  
Author(s):  
M. Zander
Keyword(s):  
Electron Transfer ◽  
Fluorescence Quenching ◽  
Excitation Energy ◽  
Reduction Potential ◽  
Nitro Compounds ◽  
Polycyclic Hydrocarbons ◽  
Electron Transfer Mechanism ◽  
Diffusion Controlled ◽  
Polycyclic Aromatic ◽  
Alternant Hydrocarbons

Abstract Fluorescence Quenching of Alternant and Non-alternant Polycyclic Hydrocarbons by Nitro Compounds Fluorescence quenching of polycyclic aromatic hydro­ carbons by nitromethane or nitrobenzene in fluid solutions is due to an electron transfer mechanism. The non diffusion controlled rate constant of quenching is very much greater for alternant than for non-alternant hydrocarbons with equal singlet excitation energy. This is explained by the known more positive reduction potential of non-alternant compared to alternant hydrocarbons.

Discriminating Chemosensor for Detection of Fe3+ in Aqueous Media by Fluorescence Quenching Methodology

2018 ◽  
Vol 39 (5) ◽  
pp. 631-637 ◽  
Author(s):  
Balasaheb D. Vanjare ◽  
Prasad G. Mahajan ◽  
Seong-Karp Hong ◽  
Ki Hwan Lee
Keyword(s):  
Fluorescence Quenching ◽  
Aqueous Media
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