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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G*
 hartrees
Energy at 0K-835.634198
Energy at 298.15K 
HF Energy-835.203866
Nuclear repulsion energy141.128703
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)/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 3105 2987        
2 A 2702 2600        
3 A 1500 1443        
4 A 1246 1199        
5 A 932 897        
6 A 658 633        
7 A 312 300        
8 A 247 237        
9 B 3163 3043        
10 B 2702 2599        
11 B 1322 1272        
12 B 1042 1003        
13 B 788 758        
14 B 740 712        
15 B 261 251        

Unscaled Zero Point Vibrational Energy (zpe) 10359.2 cm-1
Scaled (by 0.9621) Zero Point Vibrational Energy (zpe) 9966.6 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)/6-31G*
ABC
0.87932 0.10482 0.09804

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.783
S2 0.000 1.549 -0.181
S3 0.000 -1.549 -0.181
H4 0.882 -0.052 1.430
H5 -0.882 0.052 1.430
H6 1.115 1.275 -0.888
H7 -1.115 -1.275 -0.888

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82471.82471.09481.09482.37972.3797
S21.82473.09842.43652.36881.34893.1178
S31.82473.09842.36882.43653.11781.3489
H41.09482.43652.36881.76752.68093.2948
H51.09482.36882.43651.76753.29482.6809
H62.37971.34893.11782.68093.29483.3882
H72.37973.11781.34893.29482.68093.3882

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.994 C1 S3 H7 95.994
S2 C1 S3 116.215 S2 C1 H4 110.641
S2 C1 H5 105.735 S3 C1 H4 105.735
S3 C1 H5 110.641 H4 C1 H5 107.649
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability