[HTML][HTML] Recent developments in the PySCF program package

Q Sun, X Zhang, S Banerjee, P Bao, M Barbry… - The Journal of …, 2020 - pubs.aip.org
P y SCF is a Python-based general-purpose electronic structure platform that supports first-
principles simulations of molecules and solids as well as accelerates the development of …

PySCF: the Python‐based simulations of chemistry framework

Q Sun, TC Berkelbach, NS Blunt… - Wiley …, 2018 - Wiley Online Library
Python‐based simulations of chemistry framework (PySCF) is a general‐purpose electronic
structure platform designed from the ground up to emphasize code simplicity, so as to …

A fifth-order perturbation comparison of electron correlation theories

K Raghavachari, GW Trucks, JA Pople… - Chemical Physics …, 1989 - Elsevier
Electron correlation theories such as configuration interaction (CI), coupled-cluster theory
(CC), and quadratic configuration interaction (QCI) are assessed by means of a Møller …

An efficient and near linear scaling pair natural orbital based local coupled cluster method

C Riplinger, F Neese - The Journal of chemical physics, 2013 - pubs.aip.org
An efficient and near linear scaling pair natural orbital based local coupled cluster method | The
Journal of Chemical Physics | AIP Publishing Skip to Main Content Umbrella Alt Text Umbrella …

Coupled cluster theory for high spin, open shell reference wave functions

PJ Knowles, C Hampel, HJ Werner - The Journal of chemical physics, 1993 - pubs.aip.org
The coupled cluster method restricted to single and double excitations (CCSD) is
considered for the case of a spin restricted Hartree–Fock open shell reference determinant …

A comparison of the efficiency and accuracy of the quadratic configuration interaction (QCISD), coupled cluster (CCSD), and Brueckner coupled cluster (BCCD) …

C Hampel, KA Peterson, HJ Werner - Chemical physics letters, 1992 - Elsevier
The coupled-cluster method restricted to single and double excitations from a closed-shell
reference function (CCSD) and the corresponding quadratic configuration interaction …

Is coupled cluster singles and doubles (CCSD) more computationally intensive than quadratic configuration interaction (QCISD)?

GE Scuseria, HF Schaefer - The Journal of Chemical Physics, 1989 - pubs.aip.org
In a recent paper, Pople, Head-Gordon, and Raghavachari· introduced a new method,
desigeated quadratic configuration interaction (QCI). Paid us, Cizek, and leziorski2 have …

Charge model 5: An extension of Hirshfeld population analysis for the accurate description of molecular interactions in gaseous and condensed phases

AV Marenich, SV Jerome, CJ Cramer… - Journal of chemical …, 2012 - ACS Publications
We propose a novel approach to deriving partial atomic charges from population analysis.
The new model, called Charge Model 5 (CM5), yields class IV partial atomic charges by …

Introducing DDEC6 atomic population analysis: part 2. Computed results for a wide range of periodic and nonperiodic materials

NG Limas, TA Manz - RSC advances, 2016 - pubs.rsc.org
Net atomic charges (NACs) are widely used throughout the chemical sciences to concisely
summarize key information about charge transfer between atoms in materials. The vast …

An introduction to coupled cluster theory for computational chemists

TD Crawford, HF Schaefer III - Reviews in computational …, 2007 - books.google.com
Since its introduction into quantum chemistry in the late 1960s by Cizek and Paldusf “3
coupled cluster theory has emerged as perhaps the most reliable, yet computationally …