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Electron Attachment Sarah, David, Jhann

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Electron attachment MX + e MX * Attachment most efficient at low energies 2 FormationDecay MX + e Autodetachment (AD) M + X Dissociative electron attachment (DEA) Stabilization through IVR MX # Metastable molecular anion Stabilization through IVR

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Diatomic modelElectron attachment AE M + X Autodetachment MX * Electron energy 0 Internuclear distance Potential Energy Franck-Condon region EA M + X 3 rcrc

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Diatomic modelElectron attachment AE M + X EA(X) E th BDE(MX) E th = BDE(MX) EA(X) Dissociative electron attachment (DEA) MX * Electron energy 0 Potential Energy T H2 7.5 fs T D2 10.6 fs [1] [1] G. J. Schulz and R. K. Asundi. Phys. Rev., 158(1), (1967), 25. Internuclear distance M + X EA 4 rcrc

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Diatomic modelElectron attachment Stabilization through intramolecular vibrational energy redistribution (IVR) Redistribution of energy to vibrational modes not relevant for AD Electron energy 0 Internuclear distance MX MX Potential Energy 5

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Electron trappingElectron attachment Shape resonances Electron-molecule distance l > 0 V tot (eV) TNI formed through electron trapping within a centrifugal barrier 6