Multi-wavelength spectrophotometric determination of acidity constants of some salicylaldimine derivatives

被引:5
|
作者
Bordbar, Maryam [1 ]
Faal, Ali Yeganeh [2 ]
Ahari-Mostafavi, Mohammad Mahdi [1 ]
Gharagozlou, Mehrnaz [3 ]
Fazaeli, Razieh [4 ]
机构
[1] Univ Qom, Dept Chem, Qom, Iran
[2] Payame Noor Univ, Dept Chem, Tehran, Iran
[3] Inst Color Sci & Technol, Dept Nanomat & Nanotechnol, Tehran, Iran
[4] Islamic Azad Univ, Dept Chem, Shahreza Branch, Tehran 86145311, Iran
关键词
Schiff base; Salicylaldimine; Acidity constant; SQUAD; MULTIVARIATE CURVE RESOLUTION; SCHIFF-BASE; ABSORPTION-SPECTROSCOPY; EQUILIBRIUM-CONSTANTS; BIOLOGICAL-ACTIVITY; NUMERICAL-METHODS; CRYSTAL-STRUCTURE; COMPLEXES; CATALYSTS; NICKEL;
D O I
10.1016/j.molliq.2012.10.039
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The acidity constants of 9 synthesized derivatives of Schiff base in dimethylformamide/water and ethanol/water (25:75 v/v) at 25 degrees C and an ionic strength of 0.1 M have been determined spectrophotometrically. All of the spectrophotometric data as pure spectra and distribution diagrams calculated with the SQUAD and MCR-ALS as hard modeling and soft modeling methods, respectively. Also the influence of substituents in the molecular structure on the ionization constants is discussed. (C) 2012 Elsevier B.V. All rights reserved,
引用
收藏
页码:70 / 77
页数:8
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