B. Mahanti et Gs. De, KINETICS AND MECHANISM OF SUBSTITUTION IN S-DIAQUA-BIS[2-(M-TOLYLAZO)PYRIDINE]-RUTHENIUM(II) ION BY SALICYLADOXIME, Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 32(12), 1993, pp. 1081-1085
The kinetics and mechanism of the title reaction have been investigate
d spectrophotometrically as a function of [reactant complex], pH (4-6)
, [incoming ligand], temperature (35-50-degrees-C) and medium dielectr
ic constant. The kinetic and activation parameters measured for this r
eaction fall within the characteristic range of those respective param
eters for the substitution of the title complex by many other ligands
previously reported and are insensitive to the nature of incoming liga
nds. A dissociative mechanism is proposed. The effect of medium dielec
tric constant variation on the reaction rate is also a logical consequ
ence of such mechanism.