Electron-transfer fluorescence quenching by aliphatic 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 on electron-transfer fluorescence quenching by aliphatic and aromatic amines

Journal of Photochemistry and Photobiology A Chemistry ◽

10.1016/s1010-6030(00)00352-x ◽

2000 ◽

Vol 137 (2-3) ◽

pp. 93-97 ◽

Cited By ~ 20

Author(s):

Taeko Niwa Inada ◽

Koichi Kikuchi ◽

Yasutake Takahashi ◽

Hiroshi Ikeda ◽

Tsutomu Miyashi

Keyword(s):

Electron Transfer ◽

Fluorescence Quenching ◽

Comparative Study ◽

Aromatic Amines

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Comment on “A comparative study on electron transfer fluorescence quenching by aliphatic and aromatic amines” from Inada et al., J. Photochem. Photobiol. A 137 (2000) 93–97

Journal of Photochemistry and Photobiology A Chemistry ◽

10.1016/s1010-6030(01)00466-x ◽

2001 ◽

Vol 142 (1) ◽

pp. 91-94 ◽

Cited By ~ 7

Author(s):

P. Jacques ◽

X. Allonas ◽

M. Dossot

Keyword(s):

Electron Transfer ◽

Fluorescence Quenching ◽

Comparative Study ◽

Aromatic Amines

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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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Efficient Copper-Catalysed Synthesis of Carbazoles by Double N-Arylation of Primary Amines with 2,2′-Dibromobiphenyl in the Presence of Air

Synlett ◽

10.1055/s-0040-1706641 ◽

2021 ◽

Author(s):

Tran Quang Hung ◽

Tuan Thanh Dang ◽

Peter Langer ◽

Ha Nam Do ◽

Nguyen Minh Quan ◽

...

Keyword(s):

Aromatic Amines ◽

Aliphatic Amines ◽

Primary Amines ◽

Coupling Reactions ◽

Carbazole Derivatives ◽

High Yields

AbstractAn efficient Cu-catalyzed synthesis of carbazole derivatives is reported, which proceeds by double C–N coupling reactions of 2,2′-dibromobiphenyl and amines in the presence of air. The reaction is robust, proceeds in high yields, and tolerates a series of amines including neutral, electron-rich, electron-deficient aromatic amines and aliphatic amines.

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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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Addition of Aliphatic and Aromatic Amines to Catechol in Aqueous Solution Under Oxidizing Conditions

Australian Journal of Chemistry ◽

10.1071/ch9890365 ◽

1989 ◽

Vol 42 (3) ◽

pp. 365 ◽

Cited By ~ 15

Author(s):

MK Manthey ◽

SG Pyne ◽

RJW Truscott

Keyword(s):

Aqueous Solution ◽

Aqueous Solutions ◽

Aromatic Amines ◽

Aliphatic Amines ◽

Substitution Pattern ◽

Vinylogous Amides ◽

The Stability

The oxidation of catechol in the presence of two aliphatic and aromatic amines has been investigated. In aqueous solutions of pH 7.0 and 11.7, the substitution pattern of the adduct was dependent on the type of amine used. Aromatic amines produced 4,5-disubstituted o-quinones, whereas aliphatic amines gave either 2,4,5-trisubstituted or 2,4-disubstituted o-quinone adducts. A rationale based upon the stability of vinylogous amides is presented to account for the observed substitution pattern.

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