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PyridiniumN-phenoxide betaines and their application to the characterization of solvent polarities, XXI Determination of new and corrections of oldET(30) values as empirical measures of solvent polarity for 40 organic solvents

✍ Scribed by Reichardt, Christian ;Schäfer, Gerhard


Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
411 KB
Volume
1995
Category
Article
ISSN
0947-3440

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✦ Synopsis


Abstract

By means of the negative solvatochromic betaine dyes 1a and 1b empirical solvent polarity parameters E~T~(30) for 40 organic solvents of current interest were newly determined or corrected (Table 1).


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PyridiniumN-Phenoxide Betaines and Their
✍ Eberhardt, Runar ;Löbbecke, Stefan ;Neidhart, Bernd ;Reichardt, Christian 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 524 KB

## Abstract By means of the negative solvatochromic betaine dyes 1a, b, the UV/Vis‐spectroscopically derived empirical solvent polarity parameter __E__~T~(30) for supercritical carbon dioxide (sc‐CO~2~) was determined in the temperature and pressure ranges 40–80°C and 150–550 bar, respectively.