If you are looking for the Basis Set Exchange website (which can be used to browse and download this data in a more user-friendly way), visit https://www.basissetexchange.org
This project is a library containing basis sets for use in quantum chemistry calculations. In addition, this library has functionality for manipulation of basis set data.
The goal of this project is to create a consistent, thoroughly curated database of basis sets, and to provide a standard nomenclature for quantum chemistry.
The data contained within this library is being thoroughly evaluated and checked against relevant literature, software implementations, and other databases when available. The original data from the PNNL Basis Set Exchange is also available.
This library is used to form the backend of the new Basis Set Exchange website.
When publishing results obtained from use of the Basis Set Exchange software, please cite:
For citing the previous EMSL/PNNL Basis Set Exchange, please cite the following references:
Full user and developer documentation can be found at https://molssi-bse.github.io/basis_set_exchange
An overview of the project and its design is also available at https://molssi-bse.github.io/basis_set_exchange/project_doc.html
This library also includes a command line interface. See https://molssi-bse.github.io/basis_set_exchange/bse_cli.html for how to use it.
This project can be installed via pip/PyPI.
pip install basis_set_exchange
If checking out from github, you can do a local install of the Python directory,
pip install -e .
Tests can be run using
py.test -v once installed. Thorough (but very
long) tests can be run with
import basis_set_exchange as bse # Obtain the STO-3G basis set in nwchem format (as a string) for hydrogen and carbon bse.get_basis('STO-3G', elements=[1,6], fmt='nwchem') # Obtain the references for the above bse.get_references('STO-3G', elements=[1,6], fmt='txt')
For more documentation, see https://molssi-bse.github.io/basis_set_exchange
Same as above, but using the command line
$ bse get-basis sto-3g nwchem --elements=1,6
$ bse get-refs sto-3g txt --elements=1,6
This project is released under the BSD 3-Clause license. See LICENSE for details.