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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCD/Def2TZVPP
 hartrees
Energy at 0K-835.866438
Energy at 298.15K 
HF Energy-835.290221
Nuclear repulsion energy142.231317
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 CCD/Def2TZVPP
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 3117 3117 7.51      
2 A 2749 2749 0.12      
3 A 1476 1476 0.94      
4 A 1225 1225 0.50      
5 A 924 924 3.73      
6 A 658 658 2.80      
7 A 298 298 9.21      
8 A 221 221 4.65      
9 B 3175 3175 1.26      
10 B 2749 2749 0.39      
11 B 1286 1286 20.13      
12 B 1025 1025 17.84      
13 B 800 800 14.97      
14 B 725 725 0.40      
15 B 240 240 33.26      

Unscaled Zero Point Vibrational Energy (zpe) 10333.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10333.3 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 CCD/Def2TZVPP
ABC
0.89141 0.10652 0.09953

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
S2 0.000 1.537 -0.179
S3 0.000 -1.537 -0.179
H4 0.877 -0.053 1.418
H5 -0.877 0.053 1.418
H6 1.090 1.260 -0.898
H7 -1.090 -1.260 -0.898

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81171.81171.08621.08622.36492.3649
S21.81173.07442.41852.35021.33513.0874
S31.81173.07442.35022.41853.08741.3351
H41.08622.41852.35021.75752.67153.2702
H51.08622.35022.41851.75753.27022.6715
H62.36491.33513.08742.67153.27023.3326
H72.36493.08741.33513.27022.67153.3326

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.267 C1 S3 H7 96.267
S2 C1 S3 116.096 S2 C1 H4 110.637
S2 C1 H5 105.648 S3 C1 H4 105.648
S3 C1 H5 110.637 H4 C1 H5 107.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability