Title: High accuracy benchmark calculations on the benzene dimer potential energy surface
Abstract: Using our new parallel CCSD(T)/QCISD(T) program, we have optimized the geometries of the main conformations and performed potential scans on the benzene dimer at the QCISD(T)/aug-cc-pVTZ level. For each optimized geometry, single point energies were evaluated at the QCISD(T)/aug-cc-pVxZ level, where x = D,T,Q. The largest calculation, QCISD(T)/aug-cc-pVQZ involves 30 correlated orbitals and 1512 basis functions and is thus among the largest coupled cluster type calculations performed to date. The results allow a critical evaluation of MP2-based basis set extrapolation procedures.
Publication Year: 2007
Publication Date: 2007-10-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 262
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