.. table:: Double-Hybrid functionals available in |PSIfour| +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+-----------------------------------------------------------------------------+ | Name | Description | GGA? | Meta? | X_LRC? | X_Hybrid? | C_LRC? | C_Hybrid? | C_SCS? SS/OS | Dispersion? | Dispersion Description | +======================+==================================================================================+============+============+============+============+============+============+======================+======================+=============================================================================+ | B2PLYP | B2PLYP Double Hybrid Exchange-Correlation Functional | Y | --- | --- | 0.530000 | --- | 0.270000 | --- | --- | --- | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+-----------------------------------------------------------------------------+ | B2PLYP-D | B2PLYP Double Hybrid Exchange-Correlation Functional | Y | --- | --- | 0.530000 | --- | 0.270000 | --- | -D2 | Grimme's -D2 Dispersion Correction | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+-----------------------------------------------------------------------------+ | B2PLYP-D3 | B2PLYP Double Hybrid Exchange-Correlation Functional | Y | --- | --- | 0.530000 | --- | 0.270000 | --- | -D3ZERO | Grimme's -D3 (zero-damping) Dispersion Correction | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+-----------------------------------------------------------------------------+ | B2PLYP-D3BJ | B2PLYP Double Hybrid Exchange-Correlation Functional | Y | --- | --- | 0.530000 | --- | 0.270000 | --- | -D3BJ | Grimme's -D3 (BJ-damping) Dispersion Correction | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+-----------------------------------------------------------------------------+ | B2PLYP-D3M | B2PLYP Double Hybrid Exchange-Correlation Functional | Y | --- | --- | 0.530000 | --- | 0.270000 | --- | -D3MZERO | Grimme's -D3 (zero-damping, short-range refitted) Dispersion Correction | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+-----------------------------------------------------------------------------+ | B2PLYP-D3MBJ | B2PLYP Double Hybrid Exchange-Correlation Functional | Y | --- | --- | 0.530000 | --- | 0.270000 | --- | -D3MBJ | Grimme's -D3 (BJ-damping, short-range refitted) Dispersion Correction | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+-----------------------------------------------------------------------------+ | PBE0-2 | PBE0-2 Double Hydrid Exchange-Correlation Functional | Y | --- | --- | 0.793701 | --- | 0.500000 | --- | --- | --- | +----------------------+----------------------------------------------------------------------------------+------------+------------+------------+------------+------------+------------+----------------------+----------------------+-----------------------------------------------------------------------------+