Journal of Chemistry / 2013 / Article / Tab 1

Research Article

Synthesis and Characterization of Trivalent Cerium Complexes of p-tert-Butylcalix[4,6,8]Arenes: Effect of Organic Solvents

Table 1

Computed molar extinction coefficients of complexes 1, 2, and 3 in various organic solvents at 25°C.

Organic solvent 1 (104 mol−1 dm2) 2 (104 mol−1 dm2)3 (104 mol−1 dm2)

Polar protic
 Methyl alcohol5.596.596.40
 Ethyl alcohol5.116.075.87
 n-Amyl alcohol4.272.342.10
 n-Butyl alcohol4.003.002.90
 n-Propanol3.102.652.40
 Methyl isobutyl ketone0.800.500.50
Polar aprotic
 Acetonitrile3.542.672.57
 Hexamethylphosphoric triamide
2.470.670.59
 Dimethyl sulfoxide3.141.701.60
 Acetone3.401.901.80
 1–4 Dioxane2.002.041.99
Nonpolar
 Benzene2.471.871.77
 Chloroform2.601.741.74
 Carbon tetrachloride0.420.340.32
Other solvents
 Benzonitrile2.141.891.79
 Dioctyl phthalate1.000.860.75