Glossary

Author:

Rohit Goswami

Glossary of Computational Chemistry Terms

A

ASE

Atomic Simulation Environment. Python library for atomistic simulations.

Auto-install

Feature that automatically installs optional dependencies. Enabled via RGPYCRUMBS_AUTO_DEPS=1.

B

Batch Command

CLI command that generates multiple plots from TOML configuration with optional parallel processing.

C

chemgp

ChemGP (Chemistry Gaussian Process) tool for plotting GP surrogate model outputs.

D

Diataxis

Documentation framework with four types: tutorials, how-to guides, reference, explanation.

E

eOn

Python framework for automated saddle point searches.

G

GBW

Gaussian Basis Wavefunction. ORCA binary wavefunction file.

H

HDF5

Hierarchical Data Format version 5. Used by ChemGP for output storage.

I

Image

In NEB context, a replica of the system along reaction path.

J

JAX

High-performance numerical computing library. Used for GP surface fitting.

L

Landscape

2D plot of energy surface in RMSD coordinates.

Lazy Import

Pattern that defers module import until first use via ensure_import().

N

NEB

Nudged Elastic Band. Method for finding minimum energy path.

Nystrom

Approximation method for Gaussian Processes using inducing points.

O

OPI

ORCA Python Interface. Official Python library for ORCA 6.1+.

ORCA

Quantum chemistry software package.

P

PEP 723

Python Enhancement Proposal for inline script metadata. Used for CLI dependencies.

R

RMSD

Root Mean Square Deviation. Measure of structural difference.

S

Saddle Point

First-order saddle point on PES. Maximum along reaction coordinate.

T

ThreadPoolExecutor

Python module for parallel execution. Used in batch command.

U

Unit Registry

Pint object for unit-aware calculations.

See Also