EPR g-tensor

Documentation on the relativistic calculation of Electron Paramagnetic Resonance (EPR) g-tensors.

Feature List


  • relativistic 4c matrix/modified Dirac-Hartree-Fock (mDHF) and Dirac-Kohn-Sham (mDKS)

DFT non-collinear functionals

  • local (SVWN5)
  • GGA (PBE,BLYP,KT2,BP86,PP86)
  • hybrid (PBE0,B3LYP)

Wave function models

  • Kramers unrestricted determinant for open-shell doublets and triplets

Method for solving the gauge origin problem

  • common gauge origin (CGO)

Additional features

  • molecular orbital analysis
  • parallel execution on shared-memory parallel architectures (SMPs)

Related Publications

M. Repisky, S. Komorovsky, E. Malkin, O. L. Malkina, and V. G. Malkin
Relativistic four-component calculations of electronic g-tensors in the matrix Dirac-Kohn-Sham framework
Chem. Phys. Lett. 488, 94-97 (2010)

S. Gohr, P. Hrobarik, M. Repisky, S. Komorovsky, K. Ruud, and M. Kaupp
Four-component relativistic density functional theory calculations of EPR g- and hyperfine-coupling tensors using hybrid functionals: validation on transition-metal complexes with large tensor anisotropies and higher-order spin-orbit effects
J. Chem. Phys. A 119, 12892-12905 (2015)

P. J. Cherry, S. Komorovsky, V. G. Malkin, and O. L. Malkina
Calculations of the EPR g-tensor using unrestricted two- and four-component relativistic approaches within the HF and DFT frameworks
Mol. Phys. 115, 75-89 (2017)

R. D. Remigio, M. Repisky, S. Komorovsky, P. Hrobarik, L. Frediani, and K. Ruud
Four-component relativistic density functional theory with the polarisable continuum model: application to EPR parameters and paramagnetic NMR shifts
Mol. Phys. 115, 214-227 (2017)

Program Reference

ReSpect 5.1.0 (2019), relativistic spectroscopy DFT program of authors
M. Repisky, S. Komorovsky, V. G. Malkin, O. L. Malkina, M. Kaupp, K. Ruud, with contributions from R. Bast, R. Di Remigio, U. Ekstrom, M. Kadek, S. Knecht, L. Konecny, E. Malkin, I. Malkin Ondik (http://www.respectprogram.org)