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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-835.920881
Energy at 298.15K 
HF Energy-835.299334
Nuclear repulsion energy142.761352
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/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 225 213 3.45 7.37 0.66 0.79
2 A 304 289 10.03 6.01 0.60 0.75
3 A 661 627 2.94 12.01 0.11 0.21
4 A 921 874 4.39 5.23 0.29 0.45
5 A 1219 1157 0.48 6.93 0.64 0.78
6 A 1476 1401 1.02 9.73 0.73 0.85
7 A 2767 2627 0.05 120.52 0.08 0.15
8 A 3135 2976 5.60 102.75 0.06 0.12
9 B 249 236 36.92 1.07 0.75 0.86
10 B 725 688 0.63 0.62 0.75 0.86
11 B 802 762 18.18 6.09 0.75 0.86
12 B 1012 961 17.11 2.19 0.75 0.86
13 B 1269 1204 21.50 0.29 0.75 0.86
14 B 2767 2627 0.02 65.96 0.75 0.86
15 B 3178 3017 1.12 56.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10353.4 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 9829.5 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/cc-pVTZ
ABC
0.89230 0.10761 0.10042

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.782
S2 0.000 1.530 -0.179
S3 0.000 -1.530 -0.179
H4 0.875 -0.055 1.417
H5 -0.875 0.055 1.417
H6 1.077 1.228 -0.905
H7 -1.077 -1.228 -0.905

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.80651.80651.08251.08252.34812.3481
S21.80653.06032.41302.34251.33373.0492
S31.80653.06032.34252.41303.04921.3337
H41.08252.41302.34251.75352.66033.2524
H51.08252.34252.41301.75353.25242.6603
H62.34811.33373.04922.66033.25243.2676
H72.34813.04921.33373.25242.66033.2676

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.614 C1 S3 H7 95.614
S2 C1 S3 115.779 S2 C1 H4 110.776
S2 C1 H5 105.599 S3 C1 H4 105.599
S3 C1 H5 110.776 H4 C1 H5 108.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability