Abstract
Publisher Summary This chapter presents the generation of long-lived electron-hole pairs through the sorption of biphenyl into acidic ZSM-5 zeolites. The electron paramagnetic resonance (EPR), ultraviolet (UV)-visible investigations as well as Raman scattering results provide informative clues about the formation and nature of long-lived electron-hole pairs through spontaneous biphenyl (BP) ionization upon sorption in the void space of activated ZSM-5 zeolites. The transferred electron is trapped within the framework by electron accepting site while biphenyl radical cation captures one electron from the electron donating sites of zeolite framework to restore BP ground state and causes an electron deficient hole.
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