Fig. 4

(a) Absorption spectra of MPTP (300 µM) in different solvents for solvatochromism at room temperature, and (b) Correlation between maximum absorption wavelength (λₘₐₓ) and solvent polarity (ETN values).

(a) Absorption spectra of MPTP (300 µM) in different solvents for solvatochromism at room temperature, and (b) Correlation between maximum absorption wavelength (λₘₐₓ) and solvent polarity (ETN values).