Spectral regression and correlation coefficients of some benzaldimines and salicylaldimines in different solvents.
Sixteen Schiff bases obtained from the condensation of benzaldehyde or salicylaldehyde with various amines (aniline, 4-carboxyaniline, phenylhydrazine, 2,4-dinitrophenylhydrazine, ethylenediamine, hydrazine, o-phenylenediamine and 2,6-pyridinediamine) are studied with UV-vis spectroscopy to observe the effect of solvents, substituents and other structural factors on the spectra. The bands involving different electronic transitions are interpreted. Computerized analysis and multiple regression techniques were applied to calculate the regression and correlation coefficients based on the equation that relates peak position lambda(max) to the solvent parameters that depend on the H-bonding ability, refractive index and dielectric constant of solvents.
Hammud
Hassan H
HH
Chemistry Department, Faculty of Science, Beirut Arab University, P.O. Box 11-5020 Beirut, Lebanon. hammud@bau.edu.lb
Ghannoum
Amer
A
Masoud
Mamdouh S
MS
D004563:Electrochemistry; D007097:Imines / Q000737:chemistry*; D008956:Models, Chemical; D012044:Regression Analysis; D012545:Schiff Bases / Q000737:chemistry; D012997:Solvents / Q000737:chemistry*; D013057:Spectrum Analysis; D013223:Statistics as Topic
D007097:Imines; D012545:Schiff Bases; D012997:Solvents