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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCSD=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 CCSD=FULL/6-31G*
 hartrees
Energy at 0K-835.645906
Energy at 298.15K 
HF Energy-835.204126
Nuclear repulsion energy141.510679
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=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 3125 2969 9.70      
2 A 2723 2587 6.76      
3 A 1511 1435 2.12      
4 A 1259 1196 1.39      
5 A 943 896 4.86      
6 A 668 635 3.16      
7 A 314 298 19.30      
8 A 251 238 5.03      
9 B 3183 3023 1.71      
10 B 2723 2586 16.67      
11 B 1335 1268 20.32      
12 B 1053 1000 30.43      
13 B 806 765 17.87      
14 B 747 710 0.77      
15 B 264 251 41.36      

Unscaled Zero Point Vibrational Energy (zpe) 10451.9 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 9927.2 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=FULL/6-31G*
ABC
0.88565 0.10535 0.09857

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.779
S2 0.000 1.545 -0.180
S3 0.000 -1.545 -0.180
H4 0.880 -0.052 1.425
H5 -0.880 0.052 1.425
H6 1.115 1.276 -0.886
H7 -1.115 -1.276 -0.886

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81861.81861.09291.09292.37572.3757
S21.81863.09032.42952.36221.34693.1146
S31.81863.09032.36222.42953.11461.3469
H41.09292.42952.36221.76292.67593.2892
H51.09292.36222.42951.76293.28922.6759
H62.37571.34693.11462.67593.28923.3894
H72.37573.11461.34693.28922.67593.3894

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.123 C1 S3 H7 96.123
S2 C1 S3 116.340 S2 C1 H4 110.630
S2 C1 H5 105.740 S3 C1 H4 105.740
S3 C1 H5 110.630 H4 C1 H5 107.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability