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=== Active ===
{{{#!wiki
  Number of active orbitals in each irreps.
}}}
Example:

=== actel ===
{{{#!wiki
  Number of active electrons in active space.
}}}
Example:

=== Symmetry ===
{{{#!wiki
  Symmetry of the target state.
}}}
Example:

=== Spin ===
{{{#!wiki
  Spin multiplicity. 2S+1
}}}
Example 1:
{{{
Spin
 1 # singlet
}}}

Example 2:
{{{
Spin
 2 # doublet
}}}


=== Nroots ===
{{{#!wiki
Three lines should be provided.
Line 1: Two integrals. The first is number of averaged states and the second number of states calculated in CI.
Line 2: which states should be averaged
Line 3: weight of states in state-average calcualtion
}}}
Example:
{{{
Nroots
3 4 # 3 states will be averged, 4 states will be calculated
1 2 3 # States 1 2 3 will be averged
1 1 1 # equal weight for each state
}}}


=== MixCI ===
{{{#!wiki
Four lines should be provided.
Line 1: number for different types of CI.
Line 2: spin multiplicity for each type of CI.
Line 3: averaged state number for each type of CI.
Line 4: irreducible representation number for each type of CI.
}}}
Example:
{{{
MixCI
  3 # number for three types of CI.
1 2 3 # singlet, triplet and quintuplet for three types of CI.
3 1 2 # three, one and two averaged states for three types of CI.
1 4 3 # first, fourth, third irreducible representation for three types of CI.
}}}
Comment:
{{{
   With keyword 'MixCI' setting, keywords 'spin' and 'symmetry' are useless and can be missing.
}}}

MCSCF

Multi-configurational self consistent field program.

General keywords

Inactive

  • Number of inactive orbitals in each irreps.

Example:

Active

  • Number of active orbitals in each irreps.

Example:

actel

  • Number of active electrons in active space.

Example:

Symmetry

  • Symmetry of the target state.

Example:

Spin

  • Spin multiplicity. 2S+1

Example 1:

Spin
 1   # singlet

Example 2:

Spin
 2  # doublet

Nroots

Three lines should be provided. Line 1: Two integrals. The first is number of averaged states and the second number of states calculated in CI. Line 2: which states should be averaged Line 3: weight of states in state-average calcualtion

Example:

Nroots
3  4     # 3 states will be averged, 4 states will be calculated
1 2 3   # States 1 2 3 will be averged
1 1 1    # equal weight for each state

MixCI

Four lines should be provided. Line 1: number for different types of CI. Line 2: spin multiplicity for each type of CI. Line 3: averaged state number for each type of CI. Line 4: irreducible representation number for each type of CI.

Example:

MixCI
  3      # number for three types of CI.
1 2 3    # singlet, triplet and quintuplet for three types of CI.
3 1 2    # three, one and two averaged states for three types of CI.
1 4 3    # first, fourth, third irreducible representation for three types of CI.  

Comment:

   With keyword 'MixCI' setting, keywords 'spin' and 'symmetry' are useless and can be missing. 

mcscf (last edited 2024-12-28 15:32:36 by leiyibo)