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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCD/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-835.662501
Energy at 298.15K 
HF Energy-835.217366
Nuclear repulsion energy141.787368
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/6-31+G**
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 3161 2979 9.65      
2 A 2790 2629 2.70      
3 A 1493 1407 0.92      
4 A 1252 1180 1.11      
5 A 953 898 6.08      
6 A 671 633 2.97      
7 A 322 303 16.47      
8 A 253 238 2.40      
9 B 3223 3037 1.40      
10 B 2789 2628 7.16      
11 B 1341 1263 24.99      
12 B 1061 999 34.45      
13 B 810 764 16.53      
14 B 756 713 0.74      
15 B 274 258 40.40      

Unscaled Zero Point Vibrational Energy (zpe) 10574.1 cm-1
Scaled (by 0.9423) Zero Point Vibrational Energy (zpe) 9964.0 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 CCD/6-31+G**
ABC
0.88919 0.10564 0.09877

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.780
S2 0.000 1.544 -0.180
S3 0.000 -1.544 -0.180
H4 0.876 -0.055 1.424
H5 -0.876 0.055 1.424
H6 1.098 1.269 -0.886
H7 -1.098 -1.269 -0.886

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81791.81791.08781.08782.36492.3649
S21.81793.08712.42772.35651.33423.1008
S31.81793.08712.35652.42773.10081.3342
H41.08782.42772.35651.75452.67133.2715
H51.08782.35652.42771.75453.27152.6713
H62.36491.33423.10082.67133.27153.3567
H72.36493.10081.33423.27152.67133.3567

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.008 C1 S3 H7 96.008
S2 C1 S3 116.227 S2 C1 H4 110.820
S2 C1 H5 105.621 S3 C1 H4 105.621
S3 C1 H5 110.820 H4 C1 H5 107.501
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability