UV‐Vis spectroscopic study of the hydrophilic and solvatochromic 4‐[2,6‐diphenyl‐4‐(pyridin‐4‐yl)pyridinium‐1‐yl]‐2,6‐bis(pyridin‐3‐yl)phenolate betaine dye in aqueous tetra‐n‐butylammonium bromide | Zendy

Herodes Koit | Zendy; Leito Ivo | Zendy; Koppel Juta | Zendy; Reichardt Christian | Zendy; Koppel Ilmar A. | Zendy

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UV‐Vis spectroscopic study of the hydrophilic and solvatochromic 4‐[2,6‐diphenyl‐4‐(pyridin‐4‐yl)pyridinium‐1‐yl]‐2,6‐bis(pyridin‐3‐yl)phenolate betaine dye in aqueous tetra‐n‐butylammonium bromide

Author(s) -

Herodes Koit,

Leito Ivo,

Koppel Juta,

Reichardt Christian,

Koppel Ilmar A.

Publication year - 2005

Publication title -

journal of physical organic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.325

H-Index - 66

eISSN - 1099-1395

pISSN - 0894-3230

DOI - 10.1002/poc.958

Subject(s) - solvatochromism , chemistry , betaine , tetra , pyridinium , bromide , aqueous solution , solvation , solvent , medicinal chemistry , ultraviolet visible spectroscopy , photochemistry , inorganic chemistry , organic chemistry

The solvent influence on the recently synthesized hydrophilic and negatively solvatochromic 4‐[2,6‐diphenyl‐4‐(pyridin‐4‐yl)pyridinium‐1‐yl]‐2,6‐bis(pyridin‐3‐yl)phenolate betaine dye [ E T (8) dye] dissolved in binary water–tetra‐ n ‐butylammonium bromide mixtures was studied by UV–Vis spectroscopy and compared with analogous measurements of the standard E T (30) betaine dye [2,6‐diphenyl‐4‐(2,4,6‐triphenylpyridinium‐1‐yl)phenolate]. A preferential solvation model was applied to the data obtained. The E T (8) betaine dye can be applied for the determination of E T (30) values for aqueous media. However, the nonlinear nature of the relationship has to be taken into account if accurate results are desired. Copyright © 2005 John Wiley & Sons, Ltd.

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