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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP2/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/daug-cc-pVDZ
 hartrees
Energy at 0K-835.705607
Energy at 298.15K 
HF Energy-835.261012
Nuclear repulsion energy140.956865
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 MP2/daug-cc-pVDZ
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 223 223 3.50 4.29 0.36 0.52
2 A 297 297 7.94 1.05 0.17 0.29
3 A 646 646 3.31 15.53 0.13 0.23
4 A 900 900 4.30 9.26 0.08 0.16
5 A 1205 1205 0.58 3.46 0.70 0.82
6 A 1441 1441 0.50 8.72 0.62 0.76
7 A 2743 2743 0.04 152.52 0.05 0.10
8 A 3106 3106 6.62 108.89 0.06 0.11
9 B 238 238 34.78 0.17 0.75 0.86
10 B 717 717 0.97 0.53 0.75 0.86
11 B 779 779 22.88 5.85 0.75 0.86
12 B 997 997 15.74 1.04 0.75 0.86
13 B 1249 1249 25.67 0.05 0.75 0.86
14 B 2742 2742 0.01 49.38 0.75 0.86
15 B 3174 3174 1.49 55.75 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10228.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10228.1 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 MP2/daug-cc-pVDZ
ABC
0.86804 0.10498 0.09801

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.792
S2 0.000 1.549 -0.182
S3 0.000 -1.549 -0.182
H4 0.890 -0.054 1.435
H5 -0.890 0.054 1.435
H6 1.102 1.252 -0.905
H7 -1.102 -1.252 -0.905

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82931.82931.09921.09922.37932.3793
S21.82933.09742.44402.37501.35093.0953
S31.82933.09742.37502.44403.09531.3509
H41.09922.44402.37501.78322.68793.2982
H51.09922.37502.44401.78323.29822.6879
H62.37931.35093.09532.68793.29823.3353
H72.37933.09531.35093.29822.68793.3353

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.683 C1 S3 H7 95.683
S2 C1 S3 115.686 S2 C1 H4 110.648
S2 C1 H5 105.663 S3 C1 H4 105.663
S3 C1 H5 110.648 H4 C1 H5 108.410
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability