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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP3/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3/daug-cc-pVTZ
 hartrees
Energy at 0K-835.891906
Energy at 298.15K 
HF Energy-835.301281
Nuclear repulsion energy141.977633
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 MP3/daug-cc-pVTZ
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 3135 3135 4.85      
2 A 2744 2744 0.00      
3 A 1483 1483 1.04      
4 A 1224 1224 0.43      
5 A 923 923 3.80      
6 A 657 657 2.98      
7 A 297 297 7.49      
8 A 218 218 3.65      
9 B 3192 3192 1.27      
10 B 2743 2743 0.03      
11 B 1281 1281 21.50      
12 B 1023 1023 16.41      
13 B 793 793 17.56      
14 B 728 728 0.60      
15 B 234 234 31.64      

Unscaled Zero Point Vibrational Energy (zpe) 10335.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10335.7 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 MP3/daug-cc-pVTZ
ABC
0.88392 0.10631 0.09927

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/daug-cc-pVTZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.786
S2 0.000 1.539 -0.180
S3 0.000 -1.539 -0.180
H4 0.879 -0.051 1.420
H5 -0.879 0.051 1.420
H6 1.092 1.256 -0.901
H7 -1.092 -1.256 -0.901

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81661.81661.08511.08512.36982.3698
S21.81663.07782.42032.35501.33883.0865
S31.81663.07782.35502.42033.08651.3388
H41.08512.42032.35501.76092.67233.2750
H51.08512.35502.42031.76093.27502.6723
H62.36981.33883.08652.67233.27503.3290
H72.36983.08651.33883.27502.67233.3290

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.180 C1 S3 H7 96.180
S2 C1 S3 115.802 S2 C1 H4 110.495
S2 C1 H5 105.729 S3 C1 H4 105.729
S3 C1 H5 110.495 H4 C1 H5 108.462
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability