Comparative study of p‐amino benzhydrazide and m‐amino benzhydrazide by free radicals and free electron transfer |
| |
Authors: | Pradnya Nalawade Sergej Naumov Sudhir Kapoor |
| |
Institution: | 1. Radiation & Photochemistry Division, Bhabha Atomic Research Centre, , Mumbai, 400 085 India;2. Leibniz‐Institut für Oberfl?chenmodifizierung, , D‐04318 Leipzig, Germany |
| |
Abstract: | The bimolecular electron transfer from p‐amino benzhydrazide (PABH) and its meta‐derivative (m‐amino benzhydrazide (MABH)) to specific one‐electron oxidant results in the formation of anilino radical. In case of PABH, reaction with ?OH radicals results in the synchronous formation of adduct as well as anilino radical. The interesting observation is that the yield of the anilino radical increases with increase in pH. The effect of substitution also has a significant effect on the formation of adduct. In case of MABH, significant yield of anilino radical gets form on reaction with ?OH radical. The free radical electron transfer from PABH and MABH to parent radical cation of non‐polar solvent also results in the formation of anilino radical only suggesting that the radical cation of PABH and MABH has short life time. The above results were supported by quantum chemical calculations. Copyright © 2013 John Wiley & Sons, Ltd. |
| |
Keywords: | pulse radiolysis electron transfer free radical |
|
|