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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCSD(T)=FULL/TZVP

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)=FULL/TZVP
 hartrees
Energy at 0K-835.832675
Energy at 298.15K 
HF Energy-835.270075
Nuclear repulsion energy140.799210
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)=FULL/TZVP
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 3108 2971        
2 A 2713 2594        
3 A 1448 1385        
4 A 1211 1158        
5 A 913 873        
6 A 644 616        
7 A 299 286        
8 A 223 213        
9 B 3172 3033        
10 B 2713 2593        
11 B 1302 1245        
12 B 1019 974        
13 B 773 739        
14 B 717 685        
15 B 255 244        

Unscaled Zero Point Vibrational Energy (zpe) 10254.7 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 9803.5 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(T)=FULL/TZVP
ABC
0.88531 0.10376 0.09719

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.782
S2 0.000 1.557 -0.181
S3 0.000 -1.557 -0.181
H4 0.881 -0.054 1.419
H5 -0.881 0.054 1.419
H6 1.118 1.286 -0.876
H7 -1.118 -1.286 -0.876

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83061.83061.08821.08822.37752.3775
S21.83063.11432.43512.36491.34423.1331
S31.83063.11432.36492.43513.13311.3442
H41.08822.43512.36491.76452.66843.2831
H51.08822.36492.43511.76453.28312.6684
H62.37751.34423.13312.66843.28313.4073
H72.37753.13311.34423.28312.66843.4073

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.771 C1 S3 H7 95.771
S2 C1 S3 116.564 S2 C1 H4 110.491
S2 C1 H5 105.394 S3 C1 H4 105.394
S3 C1 H5 110.491 H4 C1 H5 108.342
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability