[HTML][HTML] PyBEST: Improved functionality and enhanced performance

K Boguslawski, F Brzęk, R Chakraborty… - Computer Physics …, 2024 - Elsevier
We present a methodological update to the Pythonic Black-box Electronic Structure Tool
(PyBEST), a fully-fledged modern electronic structure software package. Among other …

Toward Reliable Dipole Moments without Single Excitations: The Role of Orbital Rotations and Dynamical Correlation

R Chakraborty, MMF de Moraes… - Journal of Chemical …, 2024 - ACS Publications
The dipole moment is a crucial molecular property linked to a molecular system's bond
polarity and overall electronic structure. To that end, the electronic dipole moment, which …

Benchmarking ionization potentials from pCCD tailored coupled cluster models

M Gałyńska, K Boguslawski - Journal of Chemical Theory and …, 2024 - ACS Publications
The ionization potential (IP) is an important parameter providing essential insights into the
reactivity of chemical systems. IPs are also crucial for designing, optimizing, and …

Delving into the catalytic mechanism of molybdenum cofactors: a novel coupled cluster study

M Gałyńska, MMF de Moraes, P Tecmer… - Physical Chemistry …, 2024 - pubs.rsc.org
In this work, we use modern electronic structure methods to model the catalytic mechanism
of different variants of the molybdenum cofactor (Moco). We investigate the dependence of …

Linear Response pCCD-Based Methods: LR-pCCD and LR-pCCD+ S Approaches for the Efficient and Reliable Modeling of Excited State Properties

S Ahmadkhani, K Boguslawski… - Journal of Chemical …, 2024 - ACS Publications
In this work, we derive working equations for the linear response pair coupled cluster
doubles (LR-pCCD) ansatz and its extension to singles (S), LR-pCCD+ S. These methods …

Exploring electron affinities, LUMO energies, and band gaps with electron-pair theories

M Gałyńska, P Tecmer… - The Journal of Physical …, 2024 - ACS Publications
We introduce the electron attachment equation-of-motion pair coupled cluster doubles (EA-
EOM-pCCD) ansatz, which allows us to inexpensively compute electron affinities, energies …

Blue Fluorescence Upon Single-and Two-Photon Excitation of Aza [7] Helicenes and its Thiophene-Substituted Derivative Based on Carbazole and Anthracene

Z Hu, D Zhang, Z Liu - papers.ssrn.com
Two new helicenes based on carbazole and anthracene units, that is, 15-hexyl-15H-
tetrapheno [1, 2-b] carbazole (6) and 15-hexyl-12-(thiophen-2-yl)-15H-tetrapheno [1, 2-b] …

TOWARD ALTERNATIVE WAVE FUNCTION ANSÄTZE FOR ORGANIC ELECTRONICS

K Boguslawski - BOOK OF ABSTRACTS - mcc.hkd.hr
Quantum-mechanical modeling can assist experimental studies in efficiently devising novel
compounds with desired properties. However, the computational models are also difficult …