https://github.com/MolSSI/QCElemental
GitHub - MolSSI/QCElemental: Periodic table, physical constants, and molecule parsing for quantum...
Periodic table, physical constants, and molecule parsing for quantum chemistry. - MolSSI/QCElemental
periodic tablephysical constants
https://us.archive.ubuntu.com/ubuntu/ubuntu/pool/universe/q/qcelemental/?C=N;O=D
Index of /ubuntu/ubuntu/pool/universe/q/qcelemental
index ofubuntupooluniverseq