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Section Freq Symmetry

Information about the true (possibly input-specified) symmetry of the equilibrium geometry (in a frequencies calculation). The displaced geometries may loose symmetry. Therefore, the program uses NOSYM symmetry, internally, for a frequencies calculation. The 'true' symmetry of the system is used for analysis purposes.

nr of operators

Number of symmetry operators used

operators

(3,3) matrices of the operators

nr of symmetries

Number of subspecies

symmetry labels

Names of the subspecies

atom indices

List of indices to map the symmetry-ordered atoms (loop over symmetry sets, loop over atoms in each set) to the 'normal' list of all atoms

nr of atomsets

Number of sets of symmetry equivalent atoms

atom mappings

Integer array that provides mapping (back and forth) between the atom list in the input file and the internally used list, which is atom type driven

atomset indices

The number of atoms in each of the sets of symmetry equivalent atoms

nr of displacements_X

(X must be one of the symmetry representations.) The number of symmetry-combined atomic displacements that transform as X

degeneracy_X

Degeneracy of X

displace_X

The actual displacement direction vectors (3,natoms,N). N is the number of symmetry displacements for X.

nr of rigids_X

The number of rigid motion direction vectors that transform as symmetry representation X

displ_InputOrder_X

The displacement vectors, but now expressed in the atomic coordinates using the ordering of atoms in the input file

NormalModes_X

Harmonic frequency normal modes in representation X

Frequencies_X

The harmonic frequency values

IR intensities_X

The infrared intensities

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