SPECTROPHOTOMETRIC AND CONDUCTOMETRIC STUDIES OF METAL COMPLEXES OF 3-HYDROXY-I-p-SULPHONATOPHENYL-3-PHENYL- TRIAZINE. PART I. PALLADIUM COMPLEX

Palladium forms an intensely yellow-coloured, water-soluble complex with 3-hydroxy-I-p-sulphona­tophenyl-3-phenyltriazine. The formula of the complex, established spectrophotometrically, by applying Job's method, slope ratio method and molar ratio method and also conducto­metrically, has been determined to be PdR2 (R=reagent) The molecular extinction coefficient has been found to be 18.75 x 103 at 425mμ. The dissociation constant at 25° has been found to be 3 x 10-12 and free energy of formation of the complex is -15.72Kcal/mole