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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP4=FULL/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=FULL/6-31G*
 hartrees
Energy at 0K-835.657201
Energy at 298.15K 
HF Energy-835.203980
Nuclear repulsion energy141.296697
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=FULL/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3107 2988        
2 A 2722 2617        
3 A 1501 1444        
4 A 1249 1201        
5 A 933 897        
6 A 659 634        
7 A 314 302        
8 A 248 239        
9 B 3168 3046        
10 B 2721 2616        
11 B 1324 1273        
12 B 1043 1003        
13 B 792 761        
14 B 740 712        
15 B 264 254        

Unscaled Zero Point Vibrational Energy (zpe) 10392.2 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 9993.1 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=FULL/6-31G*
ABC
0.88218 0.10505 0.09826

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.782
S2 0.000 1.548 -0.180
S3 0.000 -1.548 -0.180
H4 0.882 -0.053 1.428
H5 -0.882 0.053 1.428
H6 1.114 1.274 -0.888
H7 -1.114 -1.274 -0.888

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82211.82211.09461.09462.37672.3767
S21.82213.09502.43452.36581.34743.1144
S31.82213.09502.36582.43453.11441.3474
H41.09462.43452.36581.76632.67923.2914
H51.09462.36582.43451.76633.29142.6792
H62.37671.34743.11442.67923.29143.3837
H72.37673.11441.34743.29142.67923.3837

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.003 C1 S3 H7 96.003
S2 C1 S3 116.277 S2 C1 H4 110.684
S2 C1 H5 105.693 S3 C1 H4 105.693
S3 C1 H5 110.684 H4 C1 H5 107.576
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability