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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP3=FULL/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3=FULL/6-31G**
 hartrees
Energy at 0K-835.679223
Energy at 298.15K 
HF Energy-835.215577
Nuclear repulsion energy142.003881
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 MP3=FULL/6-31G**
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 3197 3197 9.43      
2 A 2824 2824 3.72      
3 A 1522 1522 1.22      
4 A 1270 1270 1.28      
5 A 958 958 4.65      
6 A 675 675 3.14      
7 A 316 316 17.68      
8 A 250 250 4.50      
9 B 3260 3260 1.81      
10 B 2824 2824 9.55      
11 B 1344 1344 22.91      
12 B 1065 1065 33.17      
13 B 815 815 17.10      
14 B 750 750 0.57      
15 B 263 263 38.72      

Unscaled Zero Point Vibrational Energy (zpe) 10665.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10665.9 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 MP3=FULL/6-31G**
ABC
0.89501 0.10581 0.09897

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.778
S2 0.000 1.542 -0.179
S3 0.000 -1.542 -0.179
H4 0.873 -0.051 1.418
H5 -0.873 0.051 1.418
H6 1.097 1.269 -0.881
H7 -1.097 -1.269 -0.881

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81511.81511.08441.08442.35912.3591
S21.81513.08472.41972.35331.33113.0981
S31.81513.08472.35332.41973.09811.3311
H41.08442.41972.35331.75002.66073.2639
H51.08442.35332.41971.75003.26392.6607
H62.35911.33113.09812.66073.26393.3547
H72.35913.09811.33113.26392.66073.3547

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.924 C1 S3 H7 95.924
S2 C1 S3 116.362 S2 C1 H4 110.590
S2 C1 H5 105.734 S3 C1 H4 105.734
S3 C1 H5 110.590 H4 C1 H5 107.589
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability