All-electron double zeta basis sets for the lanthanides: Application in atomic and molecular property calculations

- The smallest all-electron basis set of valence double zeta quality is reported.
- DZP-DKH is a compact, but yet reliable, basis set to be used in place of ECP.
- B3LYP/DZP-DKZ geometric parameters and atomization energy for lanthanide trifluorides.