The intensities of 4ƒ-4ƒ transitions of lanthanide ion are little affected by environment [1-3]. Which is measured by Oscillator strength. The bands having oscillator strength ~10-5 and found much sensitive to the ligands & solvents are called hypersensitive transitions. The Judd-Oflet parameters and thermodynamic parameters [4, 5] were carried out for some f-f transitions specially on pseudo quadrupolar or Hypersensitive transitions for Pr(III) complexes with (2-Hydroxy quinoline, 8-Hydroxyquinoline, and 8-Aminoquinoline) in alcoholic (Et-OH) as well as micellar medium.