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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP4/aug-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/aug-cc-pVDZ
 hartrees
Energy at 0K-835.764785
Energy at 298.15K 
HF Energy-835.259820
Nuclear repulsion energy140.245945
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 3036        
2 A 2722 2659        
3 A 1501 1467        
4 A 1248 1219        
5 A 933 911        
6 A 659 643        
7 A 314 306        
8 A 248 242        
9 B 3168 3095        
10 B 2722 2659        
11 B 1324 1293        
12 B 1042 1018        
13 B 790 772        
14 B 740 723        
15 B 263 257        

Unscaled Zero Point Vibrational Energy (zpe) 10389.8 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 10149.8 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/aug-cc-pVDZ
ABC
0.85939 0.10388 0.09696

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.797
S2 0.000 1.557 -0.183
S3 0.000 -1.557 -0.183
H4 0.894 -0.053 1.441
H5 -0.894 0.053 1.441
H6 1.104 1.257 -0.910
H7 -1.104 -1.257 -0.910

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83961.83961.10251.10252.39042.3904
S21.83963.11402.45492.38641.35563.1094
S31.83963.11402.38642.45493.10941.3556
H41.10252.45492.38641.79022.69953.3115
H51.10252.38642.45491.79023.31152.6995
H62.39041.35563.10942.69953.31153.3465
H72.39043.10941.35563.31152.69953.3465

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.661 C1 S3 H7 95.661
S2 C1 S3 115.639 S2 C1 H4 110.594
S2 C1 H5 105.668 S3 C1 H4 105.668
S3 C1 H5 110.594 H4 C1 H5 108.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability