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Ab initio adiabatic and quasidiabatic potential energy surfaces of H+ + CO system: A study of the ground and the first three excited electronic states
Velluvakandi Chaluvalappil Saheer
Published in American Institute of Physics Inc.
2016
Volume: 144
   
Issue: 2
Abstract
The global ground and first three excited electronic state adiabatic as well as the corresponding quasidiabatic potential energy surfaces is reported as a function of nuclear geometries in the Jacobi coordinates (R →, r →, γ) using Dunning's cc-pVTZ basis set at the internally contracted multi-reference (single and double) configuration interaction level of accuracy. Nonadiabatic couplings, arising out of relative motion of proton and the vibrational motion of CO, are also reported in terms of coupling potentials. The quasidiabatic potential energy surfaces and the coupling potentials have been obtained using the ab initio procedure [Simah et al., J. Chem. Phys. 111, 4523 (1999)] for the purpose of dynamics studies. © 2016 AIP Publishing LLC.
About the journal
JournalData powered by TypesetJournal of Chemical Physics
PublisherData powered by TypesetAmerican Institute of Physics Inc.
ISSN00219606
Open AccessNo
Concepts (14)
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    Electronic states
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    Excited states
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    Molecular physics
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    Potential energy surfaces
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    Quantum chemistry
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    AB INITIO PROCEDURES
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    Configuration interactions
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    Dynamics studies
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    EXCITED ELECTRONIC STATE
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    JACOBI COORDINATES
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    NON-ADIABATIC COUPLING
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    NUCLEAR GEOMETRY
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    VIBRATIONAL MOTIONS
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    Potential energy