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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: QCISD(T)/daug-cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-835.920006
Energy at 298.15K 
HF Energy-835.300935
Nuclear repulsion energy141.590867
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-pVTZ
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 3082 3082        
2 A 2697 2697        
3 A 1461 1461        
4 A 1204 1204        
5 A 906 906        
6 A 643 643        
7 A 293 293        
8 A 210 210        
9 B 3139 3139        
10 B 2697 2697        
11 B 1258 1258        
12 B 1006 1006        
13 B 772 772        
14 B 715 715        
15 B 233 233        

Unscaled Zero Point Vibrational Energy (zpe) 10157.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10157.8 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 QCISD(T)/daug-cc-pVTZ
ABC
0.87675 0.10583 0.09881

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.789
S2 0.000 1.542 -0.181
S3 0.000 -1.542 -0.181
H4 0.883 -0.052 1.425
H5 -0.883 0.052 1.425
H6 1.098 1.254 -0.898
H7 -1.098 -1.254 -0.898

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82201.82201.08931.08932.37192.3719
S21.82203.08472.42902.36231.34343.0885
S31.82203.08472.36232.42903.08851.3434
H41.08932.42902.36231.76892.67383.2815
H51.08932.36232.42901.76893.28152.6738
H62.37191.34343.08852.67383.28153.3334
H72.37193.08851.34343.28152.67383.3334

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.881 C1 S3 H7 95.881
S2 C1 S3 115.666 S2 C1 H4 110.551
S2 C1 H5 105.697 S3 C1 H4 105.697
S3 C1 H5 110.551 H4 C1 H5 108.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability