Quantum chemical calculations of 77Se and 125Te nuclear magnetic resonance spectral parameters and their structural applications

IL Rusakova, YY Rusakov - Magnetic Resonance in Chemistry, 2021 - Wiley Online Library
An accurate quantum chemical (QC) modeling of 77Se and 125Te nuclear magnetic
resonance (NMR) spectra is deeply involved in the NMR structural assignment for selenium …

Reducing Exact Two-Component Theory for NMR Couplings to a One-Component Approach: Efficiency and Accuracy

YJ Franzke - Journal of Chemical Theory and Computation, 2023 - ACS Publications
The self-consistent and complex spin–orbit exact two-component (X2C) formalism for NMR
spin–spin coupling constants [J. Chem. Theory Comput. 17, 2021, 3874− 3994] is reduced …

Recent developments in absolute shielding scales for NMR spectroscopy

GA Aucar, IA Aucar - Annual Reports on NMR Spectroscopy, 2019 - Elsevier
The absolute value of the nuclear magnetic shielding tensor, σ, cannot be directly measured
as such, though at the moment experimental devices are available to obtain them by …

Relativistic effects in the NMR spectra of compounds containing heavy chalcogens

IL Rusakova, LB Krivdin - Mendeleev Communications, 2018 - Elsevier
An accurate and efficient prediction of the NMR spectra of organoelement compounds
containing heavy elements is on the cutting edge of the modern chemistry. Reviewed …

Relativistic calculations of nuclear magnetic resonance parameters

M Repisky, S Komorovsky, R Bast, K Ruud - 2016 - books.rsc.org
Relativistic effects are often considered to be important largely for heavy elements. However,
this is not the case for nuclear magnetic resonance (NMR) parameters. This is in part due to …

Relativistic effects on the NMR parameters of Si, Ge, Sn, and Pb alkynyl compounds: Scalar versus spin-orbit effects

TB Demissie - The Journal of chemical physics, 2017 - pubs.aip.org
The NMR chemical shifts and indirect spin-spin coupling constants of 12 molecules
containing 29 Si, 73 Ge, 119 Sn, and 207 Pb [X (CCMe) 4, Me 2 X (CCMe) 2, and Me 3 …

Foundations of the LRESC model for response properties and some applications

GA Aucar, JI Melo, IA Aucar… - International Journal of …, 2018 - Wiley Online Library
Accurate calculations of some response properties, like the NMR spectroscopic parameters,
are quite exigent for the theoretical quantum chemistry models together with the …

NMR absolute shielding scales and nuclear magnetic dipole moments of transition metal nuclei

A Antušek, M Repisky - Physical Chemistry Chemical Physics, 2020 - pubs.rsc.org
This work reports new, accurate nuclear magnetic dipole moments for NMR-active transition
metal nuclei where the long-standing systematic error due to obsolete diamagnetic …

What Most Affects the Accuracy of 125Te NMR Chemical Shift Calculations

YY Rusakov, IL Rusakova - The Journal of Physical Chemistry A, 2020 - ACS Publications
An accurate quantum chemical modeling of 125Te NMR spectra is of great importance in the
NMR structural assignment for real-life tellurium compounds, which represent a growing …

Four-Component Relativistic Density-Functional Theory Calculations of Nuclear Spin–Rotation Constants: Relativistic Effects in p-Block Hydrides

S Komorovsky, M Repisky, E Malkin… - Journal of Chemical …, 2015 - ACS Publications
We present an implementation of the nuclear spin–rotation (SR) constants based on the
relativistic four-component Dirac–Coulomb Hamiltonian. This formalism has been …