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physics.chem-ph2024
X-ray Absorption Spectra for Aqueous Ammonia and Ammonium: Quantum Mechanical versus Molecular Mechanical Embedding Schemes
Sarai Dery Folkestad, Alexander C. Paul, Regina Paul +4
The X-ray absorption (XA) spectra of aqueous ammonia and ammonium are computed using a combination of coupled cluster singles and doubles (CCSD) with different quantum mechanical a…
physics.chem-ph2023★ 1 cited
Understanding X-ray absorption in liquid water: triple excitations in multilevel coupled cluster theory
Sarai Dery Folkestad, Alexander C. Paul, Regina Paul +4
We present the first successful application of the coupled cluster approach to simulate the X-ray absorption (XA) spectrum of liquid water. The system size limitations of standard…