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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: HF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-835.301500
Energy at 298.15K 
HF Energy-835.301500
Nuclear repulsion energy142.150241
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/aug-cc-pVTZ
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 240 218 5.71 3.46 0.39 0.56
2 A 308 280 10.30 1.57 0.19 0.32
3 A 686 624 4.18 22.58 0.14 0.25
4 A 976 889 3.62 7.21 0.10 0.19
5 A 1311 1193 0.38 2.99 0.75 0.86
6 A 1577 1436 1.02 8.93 0.58 0.73
7 A 2853 2598 0.05 139.10 0.08 0.15
8 A 3228 2939 9.03 95.85 0.08 0.14
9 B 254 231 34.35 0.10 0.75 0.86
10 B 767 698 0.47 0.42 0.75 0.86
11 B 830 756 21.95 9.32 0.75 0.86
12 B 1098 1000 20.89 0.89 0.75 0.86
13 B 1382 1258 27.44 0.69 0.75 0.86
14 B 2853 2597 0.22 57.41 0.75 0.86
15 B 3284 2990 1.47 53.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10822.6 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 9852.9 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 HF/aug-cc-pVTZ
ABC
0.89876 0.10590 0.09912

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.776
S2 0.000 1.540 -0.178
S3 0.000 -1.540 -0.178
H4 0.872 -0.048 1.409
H5 -0.872 0.048 1.409
H6 1.104 1.317 -0.884
H7 -1.104 -1.317 -0.884

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81191.81191.07811.07812.38952.3895
S21.81193.08042.40862.34611.32923.1433
S31.81193.08042.34612.40863.14331.3292
H41.07812.40862.34611.74582.67883.2818
H51.07812.34612.40861.74583.28182.6788
H62.38951.32923.14332.67883.28183.4369
H72.38953.14331.32923.28182.67883.4369

picture of Methanedithiol state 1 conformation 1
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