Primary and secondary basis set superposition error at the SCF and MP2 levels. H3N‐‐Li+ and H2O‐‐Li+

نویسندگان

  • Steve Scheiner
  • Zdzisław Latajka
چکیده

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Ab initio study of the second virial coefficient protein — protein on the basis of intermolecular potential energy surface

Intermolecular potential energy surface (IPS) for protein — protein has been examined using RHF, DFT-B3LYPand MP2 levels of theory with 6-31G, 6-31G* basis sets. A number of basis sets were used in order to evaluatethe basis set effects, at all three levels of theory, basis sets has significant effects on the calculated potentialenergy curves (including position, depth and width of the potentia...

متن کامل

Perturbation Expansion Theory Corrected From Basis Set Superposition Error II. Charge-transfer, pair correlation and dispersion terms

The second order perturbation theory based on the locally projected molecular orbitals is developed. A few test calculations with cc-pVDZ and aug-cc-pVDZ basis sets are carried out for the dimers, (H2O)2 and (HF)2. The charge transfer terms remove the de…ciency of the locally projected self-consistent …eld method for molecular interaction (LP SCF MO MI), and the potential energy curves calculat...

متن کامل

Microsolvation of NO2+ in Helium: An Ab Initio Study on NO2+-Hen Clusters (n ≤ 7)

      In this study, the interaction between NO2+ cation and Hen (n = 1-7) clusters is investigated by means of ab initio calculations at MP2/aug-cc-pVTZ and QCISD/aug-cc-pVTZ computational levels. The first and second solvation shells were obtained while N atom of NO2+ interacts with five and two He atoms, respectively. Stabilizat...

متن کامل

Ab Initio NMR Study of the Isomeric Hydrogen-Bonded Methanol–Water Complexes

Isotropic and anisotropic chemical shifts for all atoms of complexes CH3HO . . . H2O and CH3OH . . . OH2 have been calculated at the Hartree–Fock, secondorder Møller-Plesset (MP2) and density functional (B3LYP) theoretical levels using the 6-311 G(2d,2p) basis set. The influence of the hydrogen bond formation on the nuclear magnetic resonance chemical shifts in all atoms is analyzed. The basis ...

متن کامل

Attenuated second-order Møller-Plesset perturbation theory: performance within the aug-cc-pVTZ basis.

Attenuated second-order Møller-Plesset perturbation theory (MP2) within the finite aug-cc-pVTZ (aTZ) basis set is developed for inter- and intra-molecular non-bonded interactions. A single attenuation parameter is optimized on the S66 database of 66 intermolecular interactions, leading to a very large RMS error reduction by a factor of greater than 5 relative to standard MP2/aTZ. Attenuation in...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2017