Selective gating to vibrational modes through resonant X-ray scattering
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2017
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The dynamics of fragmentation and vibration of molecular systems with a large number of coupled degrees of freedom are key aspects for understanding chemical reactivity and properties. Here we present a resonant inelastic X-ray scattering (RIXS) study to show how it is possible to break down such a complex multidimensional problem into elementary components. Local multimode nuclear wave packets created by X-ray excitation to different core-excited potential energy surfaces (PESs) will act as spatial gates to selectively probe the particular ground-state vibrational modes and, hence, the PES along these modes. We demonstrate this principle by combining ultra-high resolution RIXS measurements for gas-phase water with state-of-the-art simulations.
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Atomic and molecular interactions with photons, Chemical physics, Electronic structure of atoms and molecules, Excited states
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COUTO, Rafael C. et al. Selective gating to vibrational modes through resonant X-ray scattering. Nature Communications, [s. l.], v. 8, e14165, 2017. DOI: 10.1038/ncomms14165. Disponível em: https://www.nature.com/articles/ncomms14165. Acesso em: 13 dez. 2023.