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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP4/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP4/daug-cc-pVDZ
 hartrees
Energy at 0K-835.767649
Energy at 298.15K 
HF Energy-835.260557
Nuclear repulsion energy140.208404
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 MP4/daug-cc-pVDZ
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 3070 3070        
2 A 2697 2697        
3 A 1433 1433        
4 A 1194 1194        
5 A 892 892        
6 A 631 631        
7 A 290 290        
8 A 215 215        
9 B 3135 3135        
10 B 2697 2697        
11 B 1241 1241        
12 B 992 992        
13 B 759 759        
14 B 706 706        
15 B 232 232        

Unscaled Zero Point Vibrational Energy (zpe) 10090.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10090.8 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 MP4/daug-cc-pVDZ
ABC
0.86102 0.10371 0.09687

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/daug-cc-pVDZ

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.796
S2 0.000 1.558 -0.183
S3 0.000 -1.558 -0.183
H4 0.893 -0.053 1.439
H5 -0.893 0.053 1.439
H6 1.112 1.265 -0.900
H7 -1.112 -1.265 -0.900

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83971.83971.10211.10212.39052.3905
S21.83973.11592.45412.38621.35543.1182
S31.83973.11592.38622.45413.11821.3554
H41.10212.45412.38621.78932.69423.3113
H51.10212.38622.45411.78933.31132.6942
H62.39051.35543.11822.69423.31133.3693
H72.39053.11821.35543.31132.69423.3693

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.669 C1 S3 H7 95.669
S2 C1 S3 115.743 S2 C1 H4 110.552
S2 C1 H5 105.667 S3 C1 H4 105.667
S3 C1 H5 110.552 H4 C1 H5 108.546
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability