SEARCH Articles Figures Tables 20-electron transition state And excited states And transition states Base compounds Based Electronics Based compounds Electron compounds Electron in excited state Electron lifetime Electron porphyrins Electron-excitation states Electronic compounds Electronic excited Electronic excited states Electronic transitions, and Electronic-based Electronical excitation Electrons excitation Electrons, excited Excitation transitions Excited lifetime Excited porphyrine Excited state porphyrins Excited state transition Excited-state lifetime Excited-state lifetimes transitions Lifetime of excited Lifetime of excited states Lifetime of states and Lifetimes excitation states Lifetimes of excited electronic states Porphyrin compounds Porphyrin-based compounds Porphyrins 77—77* transitions Porphyrins and Porphyrins electronic State lifetimes State) compounds Transition compounds Transition electronic states