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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-835.649658
Energy at 298.15K 
HF Energy-835.217352
Nuclear repulsion energy142.271045
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=FULL/6-31+G**
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 256 240 1.83 4.98 0.44 0.62
2 A 332 312 18.34 0.15 0.09 0.17
3 A 674 633 3.30 14.09 0.17 0.30
4 A 950 893 6.99 7.20 0.18 0.30
5 A 1249 1173 1.20 17.65 0.62 0.76
6 A 1484 1394 1.20 11.55 0.71 0.83
7 A 2833 2661 1.05 126.22 0.12 0.21
8 A 3168 2975 7.47 89.77 0.10 0.18
9 B 285 267 46.08 0.23 0.75 0.86
10 B 757 711 0.86 1.09 0.75 0.86
11 B 811 762 20.08 9.20 0.75 0.86
12 B 1055 991 34.36 3.14 0.75 0.86
13 B 1333 1252 26.38 1.96 0.75 0.86
14 B 2833 2660 3.10 71.21 0.75 0.86
15 B 3235 3039 0.86 61.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10627.1 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 9981.0 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/6-31+G**
ABC
0.89372 0.10647 0.09951

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.778
S2 0.000 1.538 -0.179
S3 0.000 -1.538 -0.179
H4 0.874 -0.058 1.421
H5 -0.874 0.058 1.421
H6 1.091 1.257 -0.888
H7 -1.091 -1.257 -0.888

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81141.81141.08711.08712.35542.3554
S21.81143.07552.42362.34841.33103.0830
S31.81143.07552.34842.42363.08301.3310
H41.08712.42362.34841.75292.66673.2610
H51.08712.34842.42361.75293.26102.6667
H62.35541.33103.08302.66673.26103.3292
H72.35543.08301.33103.26102.66673.3292

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.892 C1 S3 H7 95.892
S2 C1 S3 116.187 S2 C1 H4 110.992
S2 C1 H5 105.492 S3 C1 H4 105.492
S3 C1 H5 110.992 H4 C1 H5 107.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability