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CFOUR_REFERENCEΒΆ

Specifies the type of SCF calculation to be performed. RHF (= 0) requests a restricted Hartree-Fock reference; UHF (= 1) an unrestricted Hartree-Fock reference; ROHF (= 2) a restricted open-shell Hartree-Fock calculation; TCSCF (=3) a two-configurational SCF calculation, and CASSCF (=4) a complete-active space SCF calculations (currently not implemented). PSI4 Interface: Keyword subject to translation from value of REFERENCE unless set explicitly.

  • Type: string
  • Possible Values: RHF, UHF, ROHF, TCSCF, CASSCF
  • Default: RHF

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