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Updated: Jun 1, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
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The MP2-F12 method in the Turbomole program package.

Rafał A Bachorz1, Florian A Bischoff, Andreas Glöss

  • 1Center for Functional Nanostructures (CFN, Karlsruhe Institute of Technology, Karlsruhe, Germany.

Journal of Computational Chemistry
|May 19, 2011
PubMed
Summary
This summary is machine-generated.

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This study details the explicitly correlated second-order Møller-Plesset perturbation theory (MP2-F12) method in TURBOMOLE. The implementation uses density fitting for efficient calculations of molecular systems and materials.

Area of Science:

  • Computational Chemistry
  • Quantum Chemistry
  • Theoretical Chemistry

Background:

  • Accurate electronic structure calculations are crucial for understanding molecular properties.
  • Explicitly correlated methods, like MP2-F12, offer improved accuracy over traditional approaches.
  • Efficient implementations are needed for routine application in computational chemistry.

Purpose of the Study:

  • To present the implementation of the MP2-F12 method within the TURBOMOLE program package.
  • To describe the computational strategies, including density fitting, employed for efficiency.
  • To demonstrate the method's applicability to various chemical systems.

Main Methods:

  • Explicitly correlated second-order Møller-Plesset perturbation theory (MP2-F12).

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  • Density fitting approximation for integral evaluation.
  • Support for both restricted and unrestricted Hartree-Fock reference states for open- and closed-shell systems.
  • Utilization of correlation-consistent basis sets optimized for explicitly correlated calculations (cc-pVXZ-F12).

    • Main Results:

    • The TURBOMOLE implementation of MP2-F12 significantly reduces computational prefactors through density fitting.
    • Successful application to diverse molecules (leflunomide, prednisone, methotrexate, ethylenedioxytetrafulvalene) and a zeolite model system.
    • Demonstrated performance across various basis sets, including specialized F12 basis sets.

    Conclusions:

    • The presented MP2-F12 implementation in TURBOMOLE provides an efficient and versatile tool for high-accuracy electronic structure calculations.
    • The method is suitable for studying ground states of various molecular and material systems.
    • The use of density fitting and optimized basis sets enhances the practical applicability of MP2-F12.