The UV-visible spectra of indolino spirobenzoxazine were recorded in polar protic solvents, methanol and ethanol and polar aprotic solvent, acetone. The results showed a hypsochromic shift in the wavelength of maximum absorption with increase in solvent polarity. pH variation fro...
Open access
Research Article10.9734/IRJPAC/2016/19768
The influence of solvent polarity on the absorption pattern of azo-2-naphthol dyes,1-(4-methylphenylazo)-2-naphthol (MPAN) and 1-phenylazo-2-naphthol (PAN) have been studied using a UV-Visible spectrophotometer in polar and non-polar solvents. Analysis of the spectral data obtain...
Open access
Research Article10.9734/ACSJ/2015/17260
Idongesit B. Anweting, Great O. John, Atim S. Johnson & Victor N. Mkpenie·Advances in Research·2025
In this study, a Schiff base (DHB-Pz) was synthesized via a condensation reaction between 5-amino-3-methyl-1-phenylpyrazole and 2,4-dihydroxybenzaldehyde. The compound was characterized using elemental analysis, FTIR, UV-Vis spectroscopy, and conductivity measurements. The FTIR s...
Open access
Research Article10.9734/air/2025/v26i41440