Pulse-mode product-yield-detected ESR study on the photolysis of a nitronaphthalene-aniline bifunctional chain molecule

摘要

The microwave irradiation effect on the product yield was detected in the photolysis of N-[12-(4-nitro-1-naphthoxy)dodecyl]aniline in benzene at a magnetic field. The ESR spectrum of intermediate (product-yield detected ESR) was obtained by themicrowave effect as a function of the magnetic field. It was revealed that the intermediate was a biradical in the present system. The reaction rate constant of biradical with the parent molecule and the local field causing the spin relaxation ofbiradical were estimated as 3.0×10{sup}9 M{sup}(-1) s{sup}(-1) and 1.62mT respectively from the simulation of the pulse-mode product-yield-detected ESR.