Photoinduced Electron Transfer between N,N,N′,N′-Tetra-（p-methylphenyl）-4,4-diamino-1,1′-diphenyl Ether （TPDAE） and Fullerenes (C60/C70) by Laser Flash Photolysis

The photoinduced electron-transfer reaction of N,N,N′,N′-tetra-(p-methylphenyl)-4,4′-diamino-1,1′-diphenyl ether (TPDAE) and fullerenes (C 60/C 70) by nanosecond laser flash photolysis occurred in benzonitrile. Transient absorption spectral measurements were carried out during 532 nm laser flash photolysis of a mixture of the fullerenes (C 60/C 70) and TPDAE. The electron transfer from the TPDAE to excited triplet state of the fullerenes (C 60/C 70) quantum yields and rate constants of electron transfer from TPDAE to excited triplet state of fullerenes (C 60/C 70) in benzonitrile have been evaluated by observing the transient absorption bands in the near-IR region where the excited triplet state, radical anion of fullerenes (C 60/C 70) and radical cations of TPDAE are expected to appear.