Title of article
The Hammett acidity function H0 in trifluoroacetic acid–dichloromethane mixtures
Author/Authors
Suslova، نويسنده , , Elena E. and Ovchenkova، نويسنده , , Ekaterina N. and Lomova، نويسنده , , Tatyana N.، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2014
Pages
3
From page
4325
To page
4327
Abstract
The acidity function (H0) of solutions of trifluoroacetic acid (TFA) in dichloromethane was measured by the indicator method at 298 K in the whole concentration range. The H0 value for the most acidic solution studied (12.93 M trifluoroacetic acid) is −3.09. The equation describing the dependence of H0 on the acid concentration was determined. The obtained quantitative data were used for a spectrophotometric study of the basicity of 2,9,16,23-tetra-tert-butylphthalocyanine. Two forms with different UV/vis spectra were observed and their stability constants determined.
Keywords
trifluoroacetic acid , Dichloromethane mixtures , Acidity function , 2 , 9 , 16 , 23-tert-Butylphthalocyanine , Basicity
Journal title
Tetrahedron Letters
Serial Year
2014
Journal title
Tetrahedron Letters
Record number
1890265
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