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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: QCISD(T)=FULL/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 QCISD(T)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-835.784637
Energy at 298.15K 
HF Energy-835.259962
Nuclear repulsion energy140.406968
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)=FULL/aug-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 3075 2983        
2 A 2692 2612        
3 A 1433 1390        
4 A 1189 1153        
5 A 894 868        
6 A 632 613        
7 A 291 282        
8 A 221 214        
9 B 3139 3045        
10 B 2691 2611        
11 B 1245 1207        
12 B 992 963        
13 B 758 736        
14 B 707 686        
15 B 226 219        

Unscaled Zero Point Vibrational Energy (zpe) 10091.8 cm-1
Scaled (by 0.9701) Zero Point Vibrational Energy (zpe) 9790.0 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)=FULL/aug-cc-pVDZ
ABC
0.85957 0.10421 0.09724

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/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 1.555 -0.183
S3 0.000 -1.555 -0.183
H4 0.893 -0.053 1.440
H5 -0.893 0.053 1.440
H6 1.104 1.256 -0.910
H7 -1.104 -1.256 -0.910

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83761.83761.10131.10132.38982.3898
S21.83763.10912.45232.38431.35513.1059
S31.83763.10912.38432.45233.10591.3551
H41.10132.45232.38431.78862.69843.3100
H51.10132.38432.45231.78863.31002.6984
H62.38981.35513.10592.69843.31003.3439
H72.38983.10591.35513.31002.69843.3439

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.737 C1 S3 H7 95.737
S2 C1 S3 115.546 S2 C1 H4 110.600
S2 C1 H5 105.700 S3 C1 H4 105.700
S3 C1 H5 110.600 H4 C1 H5 108.591
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability