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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CBS-Q
 hartrees
Energy at 0K-835.899819
Energy at 298.15K-835.894160
HF Energy-835.205754
Nuclear repulsion energy141.787286
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 259 259 6.94 10.59 0.63 0.77
2 A 316 316 20.62 6.91 0.64 0.78
3 A 693 693 4.95 23.36 0.17 0.29
4 A 992 992 4.24 10.39 0.62 0.76
5 A 1332 1332 1.08 20.04 0.71 0.83
6 A 1594 1594 1.31 16.01 0.75 0.86
7 A 2919 2919 5.43 134.42 0.19 0.32
8 A 3261 3261 12.34 90.43 0.14 0.25
9 B 267 267 42.16 0.94 0.75 0.86
10 B 777 777 0.71 2.02 0.75 0.86
11 B 839 839 25.85 17.31 0.75 0.86
12 B 1117 1117 37.12 6.59 0.75 0.86
13 B 1404 1404 28.53 0.31 0.75 0.86
14 B 2918 2918 12.66 117.32 0.75 0.86
15 B 3325 3325 1.61 70.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11006.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11006.4 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CBS-Q
ABC
0.88583 0.10561 0.09876

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.776
S2 0.000 1.546 -0.179
S3 0.000 -1.546 -0.179
H4 0.873 -0.049 1.415
H5 -0.873 0.049 1.415
H6 1.104 1.319 -0.879
H7 -1.104 -1.319 -0.879

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81701.81701.08291.08292.38662.3866
S21.81703.09102.41772.35461.32613.1482
S31.81703.09102.35462.41773.14821.3261
H41.08292.41772.35461.74902.68023.2835
H51.08292.35462.41771.74903.28352.6802
H62.38661.32613.14822.68023.28353.4393
H72.38663.14821.32613.28352.68023.4393

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 97.581 C1 S3 H7 97.581
S2 C1 S3 116.552 S2 C1 H4 110.387
S2 C1 H5 105.778 S3 C1 H4 105.778
S3 C1 H5 110.387 H4 C1 H5 107.713
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability