Gaussian orbital

https://doi.org/10.1351/goldbook.08171
Function centered on an atom of the form \(\phi(r) \propto x^{i} y^{j} z^{k} \exp (-\zeta r^{2})\), used to approximate atomic orbitals in the LCAO-MO method.
Source:
PAC, 2022, 94, 353. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 2021)) on page 424 [Terms] [Paper]