Kinetics and Mechanism of Hydrolysis of Mono-2-chloro-5-nitroaniline Phosphate via Conjugate Acid Species

摘要

Kinetic study of mono-2-chloro-5-nitroaniline phosphate has been made in acid region (0.1 to 7.0 mol dm~(-3)) at 60 °C.The log rate profile has a rate maximum at 4.0 mol dm~(-3).Ionic strength data upto 3.0 mu requires participation of conjugate acid species and to determine theoretical rates.Theoretical rates,estimated from second empirical term of Debye-Huckel equation,have been found in close agreement with experimental rates.Bimolecular behaviour has been decided by the Arrhenius parameters and by the analysis of molecularity data.The monoesters involves,P-N bond fission which is strengthened by comparative kinetic data.