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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: G3

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at G3
 hartrees
Energy at 0K-836.551685
Energy at 298.15K-836.545972
HF Energy-835.204999
Nuclear repulsion energy141.945616
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 HF/6-31G*
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 260 245 7.37 10.77 0.63 0.77
2 A 317 299 20.62 6.95 0.63 0.77
3 A 697 657 4.87 23.83 0.17 0.30
4 A 997 940 4.46 10.43 0.62 0.77
5 A 1340 1263 1.19 21.28 0.71 0.83
6 A 1605 1513 1.38 16.92 0.75 0.86
7 A 2919 2750 5.34 134.92 0.19 0.32
8 A 3278 3088 12.95 91.49 0.15 0.25
9 B 268 252 42.73 0.95 0.75 0.86
10 B 785 739 0.79 2.12 0.75 0.86
11 B 843 795 24.48 17.90 0.75 0.86
12 B 1124 1059 37.90 6.54 0.75 0.86
13 B 1416 1335 28.12 0.51 0.75 0.86
14 B 2918 2750 12.61 117.32 0.75 0.86
15 B 3337 3144 1.79 71.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11052.7 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 10413.8 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=FULL/6-31G*
ABC
0.89054 0.10608 0.09921

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.778
S2 0.000 1.540 -0.179
S3 0.000 -1.540 -0.179
H4 0.878 -0.054 1.422
H5 -0.878 0.054 1.422
H6 1.106 1.268 -0.887
H7 -1.106 -1.268 -0.887

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81311.81311.09091.09092.36662.3666
S21.81313.08012.42432.35471.34083.0995
S31.81313.08012.35472.42433.09951.3408
H41.09092.42432.35471.76012.67063.2776
H51.09092.35472.42431.76013.27762.6706
H62.36661.34083.09952.67063.27763.3642
H72.36663.09951.34083.27762.67063.3642

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 97.616 C1 S3 H7 97.616
S2 C1 S3 116.582 S2 C1 H4 110.399
S2 C1 H5 105.768 S3 C1 H4 105.768
S3 C1 H5 110.399 H4 C1 H5 107.674
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability