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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP2=FULL/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-836.169334
Energy at 298.15K 
HF Energy-835.290024
Nuclear repulsion energy143.002490
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/6-311+G(3df,2p)
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 226 213 3.63 3.43 0.40 0.57
2 A 303 286 7.65 0.79 0.15 0.25
3 A 664 626 2.40 13.31 0.13 0.23
4 A 925 872 4.46 7.39 0.08 0.15
5 A 1223 1153 0.53 3.99 0.65 0.79
6 A 1476 1392 1.49 8.87 0.62 0.77
7 A 2760 2602 0.31 130.46 0.06 0.11
8 A 3120 2941 4.12 98.17 0.06 0.12
9 B 247 232 32.57 0.12 0.75 0.86
10 B 728 687 0.71 0.52 0.75 0.86
11 B 806 760 17.98 5.06 0.75 0.86
12 B 1018 959 18.55 0.91 0.75 0.86
13 B 1274 1201 20.49 0.03 0.75 0.86
14 B 2759 2601 0.53 47.94 0.75 0.86
15 B 3181 2999 1.94 53.70 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10354.3 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 9761.0 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/6-311+G(3df,2p)
ABC
0.89659 0.10798 0.10086

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.777
S2 0.000 1.527 -0.178
S3 0.000 -1.527 -0.178
H4 0.877 -0.055 1.416
H5 -0.877 0.055 1.416
H6 1.088 1.241 -0.895
H7 -1.088 -1.241 -0.895

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.80091.80091.08631.08632.34892.3489
S21.80093.05372.41082.34001.33413.0589
S31.80093.05372.34002.41083.05891.3341
H41.08632.41082.34001.75672.65753.2566
H51.08632.34002.41081.75673.25662.6575
H62.34891.33413.05892.65753.25663.3005
H72.34893.05891.33413.25662.65753.3005

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.905 C1 S3 H7 95.905
S2 C1 S3 115.954 S2 C1 H4 110.789
S2 C1 H5 105.606 S3 C1 H4 105.606
S3 C1 H5 110.789 H4 C1 H5 107.921
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability