TDS File Format

TDS files are usually named spectr.t and are outputed by XTDS packages. An example is given below. The beginning of this file recalls the parameter values, the vibrational states involved and the calculation conditions. Then, the list of calculated transitions is given. Each line is identified by the lower \((J'', n'', C'')\) and upper \((J, n, C)\) quantum numbers. In each case, the \((J, n, C)\) sets are followed by a vibrational identification consisting in the number of the vibrational state and in a percentage representing the projection of the “true” vibrational wave function on the specified normal mode basis.

Hamiltonian Parameters in C3v Formalism

  289 Data ; Jmax  89 ; St Dev    1.516
 4.  4.  4.          .5      Spin Statistics , Spin Y
P0 D6           0 0 0 0 0 0 P0 D6          0 0 0 0 0 0 D0          dip
  2916.5  1533.3  3019.5  1310.8  1230.0  2342.0     1.758969E-01 9.7864000E-02     1.49885900000E-01 -1.6842752
  23    0.d+00   0     Para Number  ;  Model Accuracy Parameters
12CH3D
Jeu 23 jan 2020 10:11:04 CET   Hmn  Frdm         Value/cm-1  St.Dev./cm-1
   1  2(0,S+ ) 000000 S+  000000 S+  S+  S+  02   111  0.14988597768E+00 0.1163613E-08
   2  2(2,S+ ) 000000 S+  000000 S+  S+  S+  02     0 -0.15928387140E-01 0.0000000E+00
......................................................................................
  22  8(8,F  ) 000000 S+  000000 S+  S+  F   08     0  0.00000000000E+00 0.0000000E+00
  23  8(8,I  ) 000000 S+  000000 S+  S+  I   08     0  0.00000000000E+00 0.0000000E+00

Transition Moment Parameters in C3v Formalism

    0 Data ; Jmax   0 ; St Dev    1.516
*
*
   0  Arbitrary Units
   4
*
*                                           Hmn  Frdm
   1  2(0,S+ ) 000000 S+  000000 S+  S-  S+  02     0  0.10000000000E+01 0.0000000E+00
   2  2(2,S+ ) 000000 S+  000000 S+  S-  S+  02     0  0.00000000000E+00 0.0000000E+00
   3  2(2,P  ) 000000 S+  000000 S+  P   P   02     0  0.00000000000E+00 0.0000000E+00
   4  2(2,D  ) 000000 S+  000000 S+  P   D   02     0  0.00000000000E+00 0.0000000E+00

  1 Upper Vibrational States

     #     v1        v2        v3        v4        v5            v6        Cv
     1  |[[ 0(0,S+ )* 0(0,S+ )* 0(0,S+ )* 0(0,S+ )* 0(0,S+ )]S+ * 0(0,S+ )]S+  >

  1 Lower Vibrational States

     #     v1        v2        v3        v4        v5            v6        Cv
     1  |[[ 0(0,S+ )* 0(0,S+ )* 0(0,S+ )* 0(0,S+ )* 0(0,S+ )]S+ * 0(0,S+ )]S+  >

Spectroscopic Data Calculated through J =  99
Imposed Frequency Range:            0.000000 -         10000.000000
Vibrational Temperature:  300.00 Kelvin
Rotational  Temperature:  300.00 Kelvin
Intensity Lower Limit:  0.00E+00   Arbitrary Units
Abundance:    1.0000
Vibrational partition function:   1.0099E+00

  Calculated Transitions

     Frequency  Intensity     J" C"  n" #vib"    J  C   n  #vib      Lower Energy    Lower Population

      10.546519 4.38E-07  R   0 A1   1  1 100%   1 A2   1  1 100%        0.000000    0.408321E-04
      21.092978 5.60E-05  R   1 A2   1  1 100%   2 A1   1  1 100%        0.351794    0.122290E-03
      21.093008 4.20E-05  R   1 E    1  1 100%   2 E    2  1 100%        0.273761    0.122335E-03
.................................................................................................
    1038.918622 1.06E+04  R  98 E   65  1 100%  99 E   65  1 100%     1702.037854    0.229224E-05
    1038.917422 1.06E+04  R  98 E   66  1 100%  99 E   66  1 100%     1702.270015    0.228969E-05

 Number of Calculated Transitions          6534
 First Transition      ->        0.351794 4.38E-07  R   0 A1
 Strongest Transition  ->       25.636748 7.32E+04  R  72 A2
 Last Transition       ->       34.781496 7.60E+03  R  98 E
 Effective Jo range    ->   0 - 98
 Strongest Tr at Jmax  ->       34.747490 4.10E+04  R  99 A2
 Intensity summations:
 0.24E+09   Arbitrary Units             with    threshold = 0.00E+00
 0.24E+09   Arbitrary Units             without threshold