The Shift in the Behavior of Methylene Blue Toward the Sensitivity of Medium: Solvatochromism, Solvent Parameters, Regression Analysis and Investigation of Cosolvent on the Acidity Constants

• Published in: Journal of fluorescence Vol. 33; no. 6; pp. 2489 - 2502
• Main Author: Hemdan, Sokaina Saad
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.11.2023; Springer Nature B.V
• Subjects: Absorption spectra; Analytical Chemistry; Biochemistry; Biological and Medical Physics; Biomedical and Life Sciences; Biomedicine; Biophysics; Biotechnology; Charge transfer; Cyclohexanone; Dimethylformamide; Doppler effect; Ethanol; Hydrogen bonding; Methanol; Methylene blue; Parameter sensitivity; Permittivity; Red shift; Regression analysis; Solvation; Solvents; Solvatochromism; The acidity constants; Polarizability; Visible spectra; Neat solvents

The influence solvents from different polarity and hydrogen bonding ability on electronic absorption spectrum of Methylene blue was investigated. The visible absorption spectra were recorded in eleven neat solvents in the range 400–700 nm. Methylene blue has two absorption maxima, the first band ass...