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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP4/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP4/6-31G*
 hartrees
Energy at 0K-835.632302
Energy at 298.15K 
HF Energy-835.203936
Nuclear repulsion energy141.167167
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 MP4/6-31G*
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 3107 2967        
2 A 2722 2599        
3 A 1501 1434        
4 A 1248 1192        
5 A 933 890        
6 A 659 629        
7 A 314 299        
8 A 248 236        
9 B 3168 3025        
10 B 2722 2599        
11 B 1324 1264        
12 B 1042 995        
13 B 790 754        
14 B 740 707        
15 B 263 251        

Unscaled Zero Point Vibrational Energy (zpe) 10389.8 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 9920.1 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 MP4/6-31G*
ABC
0.88035 0.10484 0.09806

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.783
S2 0.000 1.549 -0.181
S3 0.000 -1.549 -0.181
H4 0.882 -0.053 1.429
H5 -0.882 0.053 1.429
H6 1.113 1.274 -0.888
H7 -1.113 -1.274 -0.888

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82421.82421.09491.09492.37812.3781
S21.82423.09812.43642.36821.34743.1163
S31.82423.09812.36822.43643.11631.3474
H41.09492.43642.36821.76732.68053.2929
H51.09492.36822.43641.76733.29292.6805
H62.37811.34743.11632.68053.29293.3843
H72.37813.11631.34743.29292.68053.3843

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.978 C1 S3 H7 95.978
S2 C1 S3 116.243 S2 C1 H4 110.661
S2 C1 H5 105.712 S3 C1 H4 105.712
S3 C1 H5 110.661 H4 C1 H5 107.624
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability