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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCSD/6-311G**

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/6-311G**
 hartrees
Energy at 0K-835.739049
Energy at 298.15K 
HF Energy-835.270684
Nuclear repulsion energy141.499282
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/6-311G**
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 3115 3115 12.13      
2 A 2760 2760 1.60      
3 A 1459 1459 0.59      
4 A 1248 1248 2.37      
5 A 936 936 4.70      
6 A 663 663 2.12      
7 A 304 304 12.19      
8 A 240 240 7.87      
9 B 3168 3168 2.32      
10 B 2760 2760 5.59      
11 B 1320 1320 26.79      
12 B 1046 1046 36.45      
13 B 801 801 23.24      
14 B 728 728 0.61      
15 B 259 259 33.30      

Unscaled Zero Point Vibrational Energy (zpe) 10403.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10403.5 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/6-311G**
ABC
0.89680 0.10472 0.09826

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.772
S2 0.000 1.549 -0.181
S3 0.000 -1.549 -0.181
H4 0.878 -0.052 1.417
H5 -0.878 0.052 1.417
H6 1.137 1.301 -0.842
H7 -1.137 -1.301 -0.842

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81811.81811.09141.09142.36432.3643
S21.81813.09772.42632.35941.33833.1391
S31.81813.09772.35942.42633.13911.3383
H41.09142.42632.35941.75962.64653.2754
H51.09142.35942.42631.75963.27542.6465
H62.36431.33833.13912.64653.27543.4558
H72.36433.13911.33833.27542.64653.4558

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.819 C1 S3 H7 95.819
S2 C1 S3 116.838 S2 C1 H4 110.504
S2 C1 H5 105.641 S3 C1 H4 105.641
S3 C1 H5 110.504 H4 C1 H5 107.427
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability