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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: QCISD(T)=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 QCISD(T)=FULL/6-31G*
 hartrees
Energy at 0K-835.659246
Energy at 298.15K 
HF Energy-835.203904
Nuclear repulsion energy141.237377
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 QCISD(T)=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 3103 3103        
2 A 2701 2701        
3 A 1500 1500        
4 A 1247 1247        
5 A 933 933        
6 A 658 658        
7 A 312 312        
8 A 247 247        
9 B 3161 3161        
10 B 2700 2700        
11 B 1322 1322        
12 B 1042 1042        
13 B 789 789        
14 B 739 739        
15 B 262 262        

Unscaled Zero Point Vibrational Energy (zpe) 10358.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10358.0 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 QCISD(T)=FULL/6-31G*
ABC
0.88101 0.10498 0.09820

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.782
S2 0.000 1.548 -0.180
S3 0.000 -1.548 -0.180
H4 0.882 -0.053 1.428
H5 -0.882 0.053 1.428
H6 1.116 1.275 -0.887
H7 -1.116 -1.275 -0.887

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82281.82281.09461.09462.37862.3786
S21.82283.09592.43492.36671.34893.1167
S31.82283.09592.36672.43493.11671.3489
H41.09462.43492.36671.76672.67973.2935
H51.09462.36672.43491.76673.29352.6797
H62.37861.34893.11672.67973.29353.3889
H72.37863.11671.34893.29352.67973.3889

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.018 C1 S3 H7 96.018
S2 C1 S3 116.253 S2 C1 H4 110.665
S2 C1 H5 105.711 S3 C1 H4 105.711
S3 C1 H5 110.665 H4 C1 H5 107.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability