FUNCTIONAL NAME: OPTX-NWCHEM
This is an EXCHANGE Density Functional Theory functional
FUNCTIONAL FAMILY: GGA
DESCRIPTION: Handy & Cohen OPTX 01. NWChem variant.
REFERENCES
N. C. Handy and A. J. Cohen., Mol. Phys. 99, 403 (2001)
DOI: 10.1080/00268970010018431