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Updated: Jun 18, 2026
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Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
Published on: September 17, 2017
Density functional theory calculations of 95Mo NMR parameters in solid-state compounds
Jérôme Cuny1, Eric Furet, Régis Gautier
1Sciences Chimiques de Rennes, UMR 6226, CNRS-Ecole Nationale Supérieure de Chimie de Rennes, Avenue du Général Leclerc, CS 50837, 35708 Rennes cedex 7, France.
Summary
This study validates computational methods for calculating molybdenum-95 (95Mo) electric field gradient (EFG) and chemical shift (CS) tensors in solid-state compounds. The findings confirm the reliability of advanced density functional theory approaches for precise material property prediction.
Area of Science:
- Solid-state chemistry
- Computational materials science
- Quantum chemistry
Background:
- Accurate prediction of nuclear magnetic resonance (NMR) parameters like electric field gradients (EFG) and chemical shifts (CS) is crucial for understanding solid-state molybdenum compounds.
- Periodic density functional theory (DFT) offers a powerful framework for theoretical investigations of material properties.
Purpose of the Study:
- To apply and validate periodic DFT methods for calculating (95)Mo EFG and CS tensors in solid-state molybdenum compounds.
- To assess the reliability of the projector augmented-wave (PAW) method for EFG calculations and the gauge-including projector augmented-wave (GIPAW) method for CS calculations.
Main Methods:
- Calculations of EFG tensors were performed using the projector augmented-wave (PAW) method.
- Chemical shift (CS) tensors were computed using the gauge-including projector augmented-wave (GIPAW) method, marking its first application to a 4d transition-metal nucleus.
- The study systematically examined the influence of ultra-soft pseudo-potential parameters, exchange-correlation functionals, and structural parameters on the calculated tensors.
Main Results:
- The PAW method demonstrated reliability for (95)Mo EFG tensor calculations, showing good agreement with augmented plane wave + local orbitals (APW+lo) results and experimental data.
- The GIPAW method proved effective for (95)Mo CS tensor calculations, with results validated against experimental findings.
- The research provides a comprehensive validation of the chosen computational formalisms for molybdenum compounds.
Conclusions:
- Periodic DFT methods, specifically PAW and GIPAW, are reliable tools for accurately predicting (95)Mo EFG and CS tensors in solid-state molybdenum materials.
- This work establishes a validated computational approach for future studies on molybdenum-based compounds, aiding in materials design and characterization.
- The detailed examination of computational parameters offers guidance for optimizing future DFT calculations in this field.
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