Photophysical behaviour of 2,6-diaminoanthraquinone in different solvents and at various pH.

Photophysical behaviour of 2,6-diaminoanthraquinone in different solvents and at various pH. Research Abstract Details 

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Photophysical behaviour of 2,6-diaminoanthraquinone in different solvents and at various pH. Abstract Text:

P Siva Kumar,S Kothai Nayaki,M Swaminathan,P Siva Kumar,S Kothai Nayaki,M Swaminathan,P Siva Kumar,S Kothai Nayaki,M Swaminathan,

The absorption and fluorescence spectral properties of 2,6-diaminoanthraquinone (DAAQ) have been investigated in a series of organic solvents of different polarity and in aqueous solutions with H(o)/pH/H_ in the range -10 to 17. The Stokes shift of DAAQ is correlated with various polarity scales. The study reveals the fluorescence of DAAQ dication is red shifted on protonation. The abnormal fluorescence of DAAQ dication is found to be due to large solvent relaxation in polar medium. The acidity constants for various prototropic reactions in S(o) and S(1) states are determined and discussed.

Photophysical behaviour of 2,6-diaminoanthraquinone in different solvents and at various pH. Publishing Authors By Initials

P Siva Kumar,S Kothai Nayaki,M Swaminathan,P Siva Kumar,S Kothai Nayaki,M Swaminathan,P Siva Kumar,S Kothai Nayaki,M Swaminathan,

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Photophysical behaviour of 2,6-diaminoanthraquinone in different solvents and at various pH. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Spectrochimica acta. Part A, Molecular and biomole

VOLUME: 68

Page Numbers: 651-5

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ISSN: 1386-1425

DAY: 27

MONTH: 12

YEAR: 2006

Photophysical behaviour of 2,6-diaminoanthraquinone in different solvents and at various pH. Information

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LANGUAGE: eng

NlmUniqueID: 9602533

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Grant and Affiliation Information for Photophysical behaviour of 2,6-diaminoanthraquinone in different solvents and at various pH.

AFFILIATION: Department of Chemistry, Faculty of Engineering & Technology, Annamalai University, Annamalainagar, Tamilnadu, India.

Country: England

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MEDLINETA: Spectrochim Acta A Mol Biomol

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