MOLCAS manual:

Subsections

• 8.40.1 Dependencies
• 8.40.2 Files
  • 8.40.2.1 Input files
  
  
• 8.40.3 Input
  • 8.40.3.1 Keywords
  • 8.40.3.2 Input example

8.40 quater

8.40.1 Dependencies

The QUATER is free-standing and does not depend on any other program.

8.40.2 Files

8.40.2.1 Input files

The calculation of vibrational wave functions and spectroscopic constants uses no input files (except for the standard input).

8.40.3 Input

This section describes the input to the QUATER program in the MOLCAS program system. The program name is

  &QUATER

8.40.3.1 Keywords

Keyword	Meaning
NOROtation	No rotation is performed by the program. Only the rotation matrix is printed out.
NOTRanslation	No translation is performed by the program.
DEBUg	Turn on DEBUG printout
AXIS	Define the old frame of reference
NEWAxis	Define the new frame of reference
GEO1	Define the first geometry
GEO2	Define the second geometry
XYZ1	Define the origin and two axes for the orientation of the first geometry by the index of three atoms of this geometry.
XYZ2	Define the origin and two axes for the orientation of the second geometry by the index of three atoms of this geometry.
END	End of input

QUATER will perform a vib-rot analysis and compute spectroscopic constants.

8.40.3.2 Input example

&QUATER

GEO1
  19
titre
  C  0.000000  0.000000  0.000000
  O  0.000000  0.000000  1.400000
  H  0.895670  0.000000  1.716663
  C  -0.683537  -1.183920  -0.483333
  H  -0.513360  0.889165  -0.363000
  C  -0.683537  -1.183920  -1.933333
  H  -0.170177  -2.073085  -0.120333
  H  -1.710256  -1.183920  -0.120333
  C  0.683537  -1.183920  -2.416667
  H  -1.196896  -2.073085  -2.296333
  H  -1.196896  -0.294755  -2.296333
  C  1.367073  0.000000  -1.933333
  H  1.196896  -2.073085  -2.053667
  H  0.683537  -1.183920  -3.505667
  C  1.367073  0.000000  -0.483333
  H  2.393792  0.000000  -2.296333
  H  0.853714  0.889165  -2.296333
  H  1.880433  -0.889165  -0.120333
  H  1.880433  0.889165  -0.120333
END
GEO2
  23
titre
  C  0.000000  0.000000  0.000000
  H  0.000000  0.000000  1.089000
  C  1.367075  0.000000  -0.483328
  H  -0.334267  -0.970782  -0.363000
  C  1.367081  0.000000  -1.933328
  H  1.880433  0.889165  -0.120326
  H  1.880433  -0.889165  -0.120326
  C  0.683546  1.183920  -2.416664
  H  2.393801  0.000000  -2.296324
  H  0.853722  -0.889165  -2.296330
  C  -0.683529  1.183920  -1.933336
  H  1.196904  2.073085  -2.053662
  O  0.683551  1.183920  -3.816664
  C  -0.683535  1.183920  -0.483336
  H  -1.196887  2.073085  -2.296338
  H  -1.196887  0.294755  -2.296338
  O  -0.023570  2.327015  -0.016667
  H  -1.710255  1.183920  -0.120340
  H  0.237132  1.957142  -4.132332
  C  -0.023576  2.327015  1.383333
  H  0.489783  3.216180  1.746335
  H  -1.050296  2.327015  1.746329
  H  0.489783  1.437850  1.746335
END
XYZ1
15  12  9
XYZ2
11  14  1
END

This input will perform the alignment of the second geometry (GEO2) on the first one (GEO1). Atom number 11 (C11) of the second geometry will be moved to the position of atom number 15 of the first geometry (C15). The vector C11 C14 in GEO1 will be aligned with the vector C15 C12 of GEO1. Finally the plane 11 14 1 of GEO1 will be aligned with the plane 15 12 9 of GEO2.