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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: QCISD(T)/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 QCISD(T)/daug-cc-pVDZ
 hartrees
Energy at 0K-835.768942
Energy at 298.15K 
HF Energy-835.260528
Nuclear repulsion energy140.147187
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 QCISD(T)/daug-cc-pVDZ
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 3068 3068        
2 A 2683 2683        
3 A 1433 1433        
4 A 1194 1194        
5 A 892 892        
6 A 631 631        
7 A 289 289        
8 A 215 215        
9 B 3131 3131        
10 B 2682 2682        
11 B 1241 1241        
12 B 994 994        
13 B 757 757        
14 B 705 705        
15 B 230 230        

Unscaled Zero Point Vibrational Energy (zpe) 10071.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10071.6 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 QCISD(T)/daug-cc-pVDZ
ABC
0.86071 0.10360 0.09680

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.795
S2 0.000 1.559 -0.183
S3 0.000 -1.559 -0.183
H4 0.893 -0.053 1.439
H5 -0.893 0.053 1.439
H6 1.118 1.272 -0.896
H7 -1.118 -1.272 -0.896

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.84021.84021.10201.10202.39332.3933
S21.84023.11712.45452.38651.35663.1260
S31.84023.11712.38652.45453.12601.3566
H41.10202.45452.38651.78922.69373.3139
H51.10202.38652.45451.78923.31392.6937
H62.39331.35663.12602.69373.31393.3877
H72.39333.12601.35663.31392.69373.3877

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.765 C1 S3 H7 95.765
S2 C1 S3 115.767 S2 C1 H4 110.551
S2 C1 H5 105.660 S3 C1 H4 105.660
S3 C1 H5 110.551 H4 C1 H5 108.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability