Semiempirical quantum mechanical methods for noncovalent interactions for chemical and biochemical applications

AS Christensen, T Kubar, Q Cui, M Elstner - Chemical reviews, 2016 - ACS Publications
Semiempirical (SE) methods can be derived from either Hartree–Fock or density functional
theory by applying systematic approximations, leading to efficient computational schemes …

High-accuracy semiempirical quantum models based on a minimal training set

CH Pham, RK Lindsey, LE Fried… - The Journal of Physical …, 2022 - ACS Publications
A great need exists for computationally efficient quantum simulation approaches that can
achieve an accuracy similar to high-level theories at a fraction of the computational cost. In …

Exploring the electronic and mechanical properties of the recently synthesized nitrogen-doped amorphous monolayer carbon

EJA Dos Santos, ML Pereira, RM Tromer, DS Galvão… - Nanoscale, 2025 - pubs.rsc.org
The recent synthesis of nitrogen-doped amorphous monolayer carbon (NAMC) opens new
possibilities for multifunctional materials. In this study, we have investigated the nitrogen …

Efficient Parameterization of Density Functional Tight-Binding for 5f-Elements: A Th–O Case Study

C Liu, NF Aguirre, MJ Cawkwell… - Journal of Chemical …, 2024 - ACS Publications
Density functional tight binding (DFTB) models for f-element species are challenging to
parametrize owing to the large number of adjustable parameters. The explicit optimization of …

Pair interaction energy decomposition analysis for density functional theory and density-functional tight-binding with an evaluation of energy fluctuations in molecular …

DG Fedorov, K Kitaura - The Journal of Physical Chemistry A, 2018 - ACS Publications
Pair interaction energy decomposition analysis in the fragment molecular orbital (FMO)
method is extended to treat density functional theory (DFT) and density-functional tight …

Tight-binding approximation-enhanced global optimization

M Van den Bossche, H Gronbeck… - Journal of chemical …, 2018 - ACS Publications
Solving and predicting atomic structures from first-principles methodologies is limited by the
computational cost of exploring the search space, even when relatively inexpensive density …

Semi-automated creation of density functional tight binding models through leveraging Chebyshev polynomial-based force fields

N Goldman, KE Kweon, B Sadigh, TW Heo… - Journal of Chemical …, 2021 - ACS Publications
Density functional tight binding (DFTB) is an attractive method for accelerated quantum
simulations of condensed matter due to its enhanced computational efficiency over standard …

Parametrized quantum-mechanical approaches combined with the fragment molecular orbital method

DG Fedorov - The Journal of Chemical Physics, 2022 - pubs.aip.org
Fast parameterized methods such as density-functional tight-binding (DFTB) facilitate
realistic calculations of large molecular systems, which can be accelerated by the fragment …

Enhancing the accuracy of density functional tight binding models through ChIMES many-body interaction potentials

N Goldman, LE Fried, RK Lindsey, CH Pham… - The Journal of …, 2023 - pubs.aip.org
Semi-empirical quantum models such as Density Functional Tight Binding (DFTB) are
attractive methods for obtaining quantum simulation data at longer time and length scales …

Polarization energies in the fragment molecular orbital method

DG Fedorov - Journal of Computational Chemistry, 2022 - Wiley Online Library
Using isolated and polarized states of fragments, a method for computing the polarization
energies in density functional theory (DFT) and density‐functional tight‐binding (DFTB) is …