Density functional theory calculations of 95Mo NMR parameters in solid-state compounds

Chemphyschem. 2009 Dec 21;10(18):3320-9. doi: 10.1002/cphc.200900586.

Abstract

The application of periodic density functional theory-based methods to the calculation of (95)Mo electric field gradient (EFG) and chemical shift (CS) tensors in solid-state molybdenum compounds is presented. Calculations of EFG tensors are performed using the projector augmented-wave (PAW) method. Comparison of the results with those obtained using the augmented plane wave + local orbitals (APW+lo) method and with available experimental values shows the reliability of the approach for (95)Mo EFG tensor calculation. CS tensors are calculated using the recently developed gauge-including projector augmented-wave (GIPAW) method. This work is the first application of the GIPAW method to a 4d transition-metal nucleus. The effects of ultra-soft pseudo-potential parameters, exchange-correlation functionals and structural parameters are precisely examined. Comparison with experimental results allows the validation of this computational formalism.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Algorithms
  • Magnetic Resonance Spectroscopy*
  • Molybdenum / chemistry*

Substances

  • Molybdenum