ELECTROCHEMICAL-BEHAVIOR OF THE SCHIFF-BASE FROM PYRIDINE-4-ALDEHYDE AND N-HEXYLAMINE

被引：8
|
作者：
PINEDA, T
BLAZQUEZ, M
GARCIABLANCO, F
DOMINGUEZ, M
机构：
[1] UNIV CORDOBA, FAC CIENCIAS, DEPT QUIM FIS & TERMODINAM APL, E-14004 CORDOBA, SPAIN
[2] UNIV COMPLUTENSE, FAC FARM, DEPT FIS QUIM, E-28040 MADRID, SPAIN
[3] UNIV SEVILLA, DEPT QUIM FIS, E-41071 SEVILLE, SPAIN
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1990年 / 280卷 / 01期
关键词：
D O I：
10.1016/0022-0728(90)87087-Z
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A study of the Schiff base from pyridine-4-aldehyde and n-hexylamine (SBPYH) was carried out. Equilibrium in solution, between the aldehyde, amine and Schiff base, was reached in the time scale of the experiments. In dc and DP polarography one or two waves were obtained, depending on the experimental conditions. The effects of the pH, the amine concentration and the capillary characteristics were studied. The apparent constant of the SBPYH formation was obtained as a function of the pH. The current-time curves show the influence of the hydration-dehydration reactions of the aldehyde in the overall process. Polarographic parameters, Tafel slope, reaction orders and voltammetric results account for the electroreduction of the azomethine group in neutral and basic media. © 1990.
引用
收藏
页码：105 / 118
页数：14
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