Dissociation constants for polyfluoro acids of phosphorus in various media

Autor:	I. Yu. Kudryavtsev, M. I. Kabachnik, E. K. Kuznetsova, A. A. Grigor'eva, Anna G. Matveeva, L. S. Zakharov, E. I. Matrosov
Rok vydání:	1982
Předmět:	Aqueous solution Nitromethane Phosphorus Potentiometric titration Inorganic chemistry chemistry.chemical_element Alcohol General Chemistry Solvent Dissociation constant chemistry.chemical_compound chemistry Organic chemistry Titration
Zdroj:	Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 31:1329-1335
ISSN:	1573-9171 0568-5230
DOI:	10.1007/bf00954148
Popis:	1. Various polyfluoro acids of phosphorus have been synthesized. Potentiometric titration in transference cells has been used to determine the dissociation constants of these acids in nitromethane and in 50, 80, 95, and 100% alcohol solutions. 2. The differences in strength of the polyfluoro acids of phosphorus tend to be minimal in aqueous alcoholic solution. 3. The spectral characteristic (ΔνOH) of the H-bonds of phenol-polyfluorophosphoryl complexes have been measured in CCl4 solution. 4. The σФ values of polyfluoroalkoxyl substituents are radically different in aqueous and in water-free solvents. The companion values for 3,3,3-trifluoropropoxy and 3,3,3-trifluoropropyl groups are not affected by changes in the solvent.
Databáze:	OpenAIRE
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