Photoinduced electron transfer of N,N,N′,N′-tetramethyl-p-phenylenediamine and maleic anhydride in 2-propanol

Radical ion pairs originated from the excited state of the complex between TMPD in the ground electronic state and MA shows the TM type spin polarization, while the radical ion pairs produced via the dynamic quenching of the TMPD fluorescence shows the RPM type spin polarization in 2-propanol.