Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 12, Issue 24, Pages 6382-6386Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c001192d
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Empirically dispersion corrected B3LYP method (i.e. B3LYP-D) is demonstrated to give excellent results for structure, adsorption energy and vibrational frequency shift for the CO molecule adsorbed on the MgO(001) surface, a system considered a challenge for current density functional methods. A periodic approach was adopted to model the interaction using a three-layer slab model. For the B3LYP-D* method an interaction energy of -13.1 kJ mol(-1) is computed at low-coverage in very good agreement with experimental evidence (-12.6 kJ mol(-1)) as well as a positive CO vibrational shift of 10 cm(-1) to be compared with the experimental value of 14 cm(-1).
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