A comparative study on electron-transfer fluorescence quenching by aliphatic and aromatic amines

Electron-transfer interaction of an excited aromatic molecule with an aliphatic tertiary amine leads to a pattern of intermediate products not to be expected from earlier work with aromatic amines. The reasons for this phenomenon are briefly discussed.

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A comparative study of lysosome-targetable pH probes based on phenoxazinium attached with aliphatic and aromatic amines

The Analyst ◽

10.1039/c6an00258g ◽

2016 ◽

Vol 141 (10) ◽

pp. 2962-2969 ◽

Cited By ~ 8

Author(s):

Xiu-Li Wang ◽

Xiao-Jun Li ◽

Ru Sun ◽

Yu-Jie Xu ◽

Jian-Feng Ge

Keyword(s):

Electron Transfer ◽

Comparative Study ◽

Photoinduced Electron Transfer ◽

Aromatic Amines ◽

Ph Probes

Phenoxazinium was used as a fluorophore for the design of pH probes by the photoinduced electron transfer (PET) mechanism.

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Electron Transfer from Aromatic Amines to Excited Coumarin Dyes: Fluorescence Quenching and Picosecond Transient Absorption Studies

The Journal of Physical Chemistry A ◽

10.1021/jp993206z ◽

2000 ◽

Vol 104 (3) ◽

pp. 673-680 ◽

Cited By ~ 110

Author(s):

Sanjukta Nad ◽

Haridas Pal

Keyword(s):

Electron Transfer ◽

Fluorescence Quenching ◽

Aromatic Amines ◽

Transient Absorption ◽

Absorption Studies ◽

Coumarin Dyes

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

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19871658 ◽

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+.

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

Zeitschrift für Naturforschung A ◽

10.1515/zna-1977-1235 ◽

1977 ◽

Vol 32 (12) ◽

pp. 1561-1563 ◽

Cited By ~ 31

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.

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