Autor: |
Tsvetkov, E. N., Terekhova, M. I., Petrov, É. S., Malevannaya, R. A., Mesyats, S. P., Shatenshtein, A. I., Kabachnik, M. I. |
Zdroj: |
Russian Chemical Bulletin; September 1978, Vol. 27 Issue: 9 p1743-1746, 4p |
Abstrakt: |
1.The transmetallation method has been used to measure equilibrium acidities of P(O)H-and P(S)H-acids of various structures in dimethylsulfoxide solution and relative to 9-phenyl-fluorene.2.The effect of the substituent at the P atom on the pK value for the P(O)H-acid can be described by linear correlation relations in the sf and s* constants. The diarylphosphinous acids cannot be fitted into such correlations because of p,p coupling in their anions.3.The acidity of the P(S)H-acids is some nine orders higher than that of the phosphoryl analogs. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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