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Ab initio potential energy and dipole moment surfaces of the F(-)(H2O) complex
Eugene Kamarchik1, Daniele Toffoli, Ove Christiansen
1Combustion Research Facility, Sandia National Laboratories, Livermore, CA 94551, USA.
Abstract:
We present full-dimensional, ab initio potential energy and dipole moment surfaces for the F(-)(H2O) complex. The potential surface is a permutationally invariant fit to 16,114 coupled-cluster single double (triple)/aVTZ energies, while the dipole surface is a covariant fit to 11,395 CCSD(T)/aVTZ dipole moments. Vibrational self-consistent field/vibrational configuration interaction (VSCF/VCI) calculations of energies and the IR-spectrum are presented both for F(-)(H2O) and for the deuterated analog, F(-)(D2O). A one-dimensional calculation of the splitting of the ground state, due to equivalent double-well global minima, is also reported.
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