11.2 Ground-State Energy Calculations

For ground-state energy calculations all of the above methods and features are available:

• conventional (non-F12) methods:
  MP3, MP4, CCSD, CCSD(T), CC(3), CC3, BCCD, and BCCD(T)

• F12 methods:
  MP3(F12), MP4(F12*), CCSD(F12), CCSD(F12*), CCSD(F12), CCSD[F12], CCSD-F12a, CCSD-F12b, CCSD-F12c, CCSD(2)\(_{\overline{\mathrm{F12}}}\), CCSD(2*)\(_{\overline{\mathrm{F12}}}\), CCSD\(_{\mathrm{(F12*)}}\), CCSD(F12*), BCCD\(_{\text{(F12*)}}\), BCCD(T)\(_{\text{(F12*)}}\)
  (All CCSD variants can be combined with the (T) perturbative triples correction.)

• All methods available for closed-shell RHF, unrestricted (UHF) and single-determinant restricted (ROHF) open-shell reference wavefunctions.