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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-835.903456
Energy at 298.15K 
HF Energy-835.299150
Nuclear repulsion energy141.562449
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 CCSD(T)/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 3085 3008        
2 A 2704 2636        
3 A 1458 1421        
4 A 1203 1172        
5 A 906 883        
6 A 643 627        
7 A 295 287        
8 A 216 210        
9 B 3143 3064        
10 B 2704 2635        
11 B 1260 1228        
12 B 1004 979        
13 B 775 756        
14 B 714 696        
15 B 238 232        

Unscaled Zero Point Vibrational Energy (zpe) 10173.0 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 9916.6 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 CCSD(T)/cc-pVTZ
ABC
0.88104 0.10559 0.09861

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.786
S2 0.000 1.544 -0.180
S3 0.000 -1.544 -0.180
H4 0.881 -0.054 1.424
H5 -0.881 0.054 1.424
H6 1.092 1.253 -0.904
H7 -1.092 -1.253 -0.904

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82181.82181.08871.08872.37092.3709
S21.82183.08872.42952.36011.34193.0893
S31.82183.08872.36012.42953.08931.3419
H41.08872.42952.36011.76502.67843.2788
H51.08872.36012.42951.76503.27882.6784
H62.37091.34193.08932.67843.27883.3242
H72.37093.08931.34193.27882.67843.3242

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.886 C1 S3 H7 95.886
S2 C1 S3 115.927 S2 C1 H4 110.642
S2 C1 H5 105.588 S3 C1 H4 105.588
S3 C1 H5 110.642 H4 C1 H5 108.313
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability