Current density and molecular magnetic properties

D Sundholm, M Dimitrova, RJF Berger - Chemical Communications, 2021 - pubs.rsc.org
We give an overview of the molecular response to an external magnetic field perturbing
quantum mechanical systems. We present state-of-the-art methods for calculating …

Assessing the accuracy of local hybrid density functional approximations for molecular response properties

C Holzer, YJ Franzke, M Kehry - Journal of Chemical Theory and …, 2021 - ACS Publications
A comprehensive overview of the performance of local hybrid functionals for molecular
properties like excited states, ionization potentials within the GW framework, polarizabilities …

Determinant factors of three-dimensional aromaticity in antiaromatic cyclophanes

H Kawashima, S Ukai, R Nozawa, N Fukui… - Journal of the …, 2021 - ACS Publications
Three-dimensional aromaticity arising from the close stacking of two antiaromatic π-
conjugated macrocycles has recently received considerable attention. Here, a cyclophane …

Core-electron contributions to the magnetic response of molecules with heavy elements and their significance in aromaticity assessments

M Orozco-Ic, L Soriano-Agueda, D Sundholm… - Chemical …, 2024 - pubs.rsc.org
This study delves into the magnetic response of core electrons and their influence on the
global magnetic response of planar and three-dimensional systems containing heavy …

Non-intersecting ring currents in [12] infinitene

M Orozco-Ic, RR Valiev, D Sundholm - Physical Chemistry Chemical …, 2022 - pubs.rsc.org
The aromaticity of the newly synthesized [12] infinitene is addressed via analysis of the
magnetically induced current density and the induced magnetic field. Our calculations reveal …

How Aromatic Are Molecular Nanorings? The Case of a Six‐Porphyrin Nanoring

I Casademont‐Reig, R Guerrero‐Avilés… - Angewandte …, 2021 - Wiley Online Library
Large conjugated rings with persistent currents are novel promising structures in molecular‐
scale electronics. A six‐porphyrin nanoring structure that allegedly sustained an aromatic …

Benchmarking Quantum Mechanical Levels of Theory for Valence Parametrization in Force Fields

PK Behara, H Jang, JT Horton, T Gokey… - The Journal of …, 2024 - ACS Publications
A wide range of density functional methods and basis sets are available to derive the
electronic structure and properties of molecules. Quantum mechanical calculations are too …

Quasi-Relativistic Calculation of EPR g Tensors with Derivatives of the Decoupling Transformation, Gauge-Including Atomic Orbitals, and Magnetic Balance

YJ Franzke, JM Yu - Journal of Chemical Theory and Computation, 2022 - ACS Publications
We present an exact two-component (X2C) ansatz for the EPR g tensor using gauge-
including atomic orbitals (GIAOs) and a magnetically balanced basis set expansion. In …

[HTML][HTML] Impact of the current density on paramagnetic NMR properties

YJ Franzke, C Holzer - The Journal of Chemical Physics, 2022 - pubs.aip.org
Meta-generalized gradient approximations (meta-GGAs) and local hybrid functionals
generally depend on the kinetic energy density τ. For magnetic properties, this necessitates …

Paramagnetic nuclear magnetic resonance shifts for triplet systems and beyond with modern relativistic density functional methods

YJ Franzke, F Bruder, S Gillhuber… - The Journal of …, 2024 - ACS Publications
An efficient framework for the calculation of paramagnetic NMR (pNMR) shifts within exact
two-component (X2C) theory and (current-dependent) density functional theory (DFT) up to …