Skip to main content

Table 2 Empirical parameters of solvent polarity

From: Solvent effect on the spectral properties of Neutral Red

Solvent ET (30) kcal/mol ET (NR) kcal/mol f(ε, n) g(n) φ(ε, n)
Water 62.8 54.25 0.91363 0.226851 1.367334
Propan-1-ol 50.7 53.14 0.77905 0.262207 1.303468
Chloroform 39.1 54.77 0.37245 0.300187 0.972823
Acetonitrile 55.4 53.84 0.86602 0.234279 1.334575
DMSO 45.1 52.36 0.84132 0.323779 1.488877
Ethanol 51.9 53.24 0.81293 0.245993 1.304918
Acetone 39.1 54.45 0.79028 0.244380 1.279042
DMF 43.2 52.95 0.83944 0.292021 1.423484
Acetic acid 51.7 53.54 0.49972 0.254245 1.004628
Ethyleneglycol 56.3 54.77 1.11158 0.292350 1.696281
Nitrobenzene 41.2 52.55 0.78171 0.369957 1.521691