Equilibrium acidities of some carbon acids in acetonitrile

被引：12

作者：

Galezowski, W ^{[1
]}

Stanczyk, M ^{[1
]}

Jarczewski, A ^{[1
]}

机构：

[1] ADAM MICKIEWICZ UNIV POZNAN,FAC CHEM,POZNAN,POLAND

来源：

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 1997年 / 75卷 / 03期

关键词：

C-acids; pK(a) values; equilibrium; reactivity; proton transfer reaction;

D O I：

10.1139/v97-032

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The pK(a) values for C-acids (4-nitrophenylnitroalkanes, 4-nitrophenyl-(4-X-phenyl)cyanomethanes, 2,4,6-trinitrotoluene, and 9-cyanofluorene) in acetonitrile have been measured. These values were determined spectrophotometrically in buffer solutions consisting of a strong amine base and its picrate or perchlorate using known potentiometric pK(a)'s of amines, and they range from 19 for bis(4-nitrophenyl)cyanomethane to 25.1 for ethyl bis(4-nitrophenyl)acetate.

引用

页码：285 / 288

页数：4

共 37 条

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Bell RP., 1973, PROTON CHEM, V2nd

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