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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP2/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-60.110546
Energy at 298.15K 
HF Energy-59.919687
Nuclear repulsion energy47.212701
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/LANL2DZ
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 244 235 9.21 38.13 0.68 0.81
2 A 288 278 30.38 33.79 0.72 0.84
3 A 597 575 4.52 19.99 0.11 0.20
4 A 896 863 2.90 17.06 0.70 0.83
5 A 1240 1195 1.59 23.60 0.75 0.85
6 A 1466 1412 1.33 13.83 0.75 0.86
7 A 2569 2474 10.68 154.04 0.14 0.25
8 A 3109 2995 20.43 105.29 0.07 0.12
9 B 255 245 52.72 17.52 0.75 0.86
10 B 713 687 21.97 5.95 0.75 0.86
11 B 730 703 3.54 11.75 0.75 0.86
12 B 1018 981 23.36 8.75 0.75 0.86
13 B 1326 1277 13.26 1.74 0.75 0.86
14 B 2569 2474 26.95 92.08 0.75 0.86
15 B 3197 3079 4.11 56.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10108.7 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 9735.7 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/LANL2DZ
ABC
0.83576 0.09670 0.09065

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.811
S2 0.000 1.612 -0.187
S3 0.000 -1.612 -0.187
H4 0.895 -0.056 1.446
H5 -0.895 0.056 1.446
H6 1.161 1.379 -0.880
H7 -1.161 -1.379 -0.880

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.89611.89611.09861.09862.47162.4716
S21.89613.22402.50012.42691.37213.2820
S31.89613.22402.42692.50013.28201.3721
H41.09862.50012.42691.79302.74593.3744
H51.09862.42692.50011.79303.37442.7459
H62.47161.37213.28202.74593.37443.6048
H72.47163.28201.37213.37442.74593.6048

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.963 C1 S3 H7 96.963
S2 C1 S3 116.457 S2 C1 H4 110.344
S2 C1 H5 105.130 S3 C1 H4 105.130
S3 C1 H5 110.344 H4 C1 H5 109.382
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability