Multicomponent quantum chemistry: Integrating electronic and nuclear quantum effects via the nuclear–electronic orbital method

F Pavošević, T Culpitt, S Hammes-Schiffer - Chemical reviews, 2020 - ACS Publications
In multicomponent quantum chemistry, more than one type of particle is treated quantum
mechanically with either density functional theory or wave function based methods. In …

The any particle molecular orbital approach: A short review of the theory and applications

A Reyes, F Moncada, J Charry - International Journal of …, 2019 - Wiley Online Library
The any particle molecular orbital (APMO) approach extends regular electronic structure
methods to study atomic and molecular systems in which electrons and other particles are …

Multicomponent density functional theory: Impact of nuclear quantum effects on proton affinities and geometries

KR Brorsen, Y Yang… - The Journal of Physical …, 2017 - ACS Publications
Nuclear quantum effects such as zero point energy play a critical role in computational
chemistry and often are included as energetic corrections following geometry optimizations …

Multicomponent coupled cluster singles and doubles theory within the nuclear-electronic orbital framework

F Pavošević, T Culpitt… - Journal of chemical …, 2018 - ACS Publications
The nuclear-electronic orbital (NEO) method treats all electrons and specified nuclei,
typically protons, quantum mechanically on the same level with molecular orbital …

LOWDIN: The any particle molecular orbital code

R Flores‐Moreno, E Posada, F Moncada… - … Journal of Quantum …, 2014 - Wiley Online Library
LOWDIN is a computational program that implements the Any Particle Molecular Orbital
(APMO) method. The current version of the code encompasses Hartree–Fock, second‐order …

Calculation of positron binding energies using the generalized any particle propagator theory

J Romero, JA Charry, R Flores-Moreno… - The Journal of …, 2014 - pubs.aip.org
We recently extended the electron propagator theory to any type of quantum species based
in the framework of the Any-Particle Molecular Orbital (APMO) approach [J. Romero, E …

Calculation of positron binding energies of amino acids with the any-particle molecular-orbital approach

J Charry, J Romero, MTN Varella, A Reyes - Physical Review A, 2014 - APS
We report positron binding energies (PBEs) for the 20 standard amino acids in the global
minimum, hydrogen-bonded, and zwitterionic forms. The calculations are performed at the …

A generalized any-particle propagator theory: Prediction of proton affinities and acidity properties with the proton propagator

M Díaz-Tinoco, J Romero, JV Ortiz, A Reyes… - The Journal of …, 2013 - pubs.aip.org
We have recently extended the electron propagator theory to the treatment of any type of
particle using an Any-Particle Molecular Orbital (APMO) wavefunction as reference state …

Improving quasiparticle second order electron propagator calculations with the spin-component-scaled technique

J Romero, JA Charry, H Nakai, A Reyes - Chemical Physics Letters, 2014 - Elsevier
A simple modification of the quasiparticle second order electron propagator (EP2) method
based on the spin-component-scaled technique is proposed. In this new approach, the …

A comprehensive theoretical study of positron binding and annihilation properties of hydrogen bonded binary molecular clusters

D Yoshida, Y Kita, T Shimazaki… - Physical Chemistry …, 2022 - pubs.rsc.org
We studied the positron binding and annihilation of hydrogen bonded binary molecular
clusters containing small inorganic molecules such as water, hydrogen fluoride, ammonia …