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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: CCSD(T)/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCSD(T)/6-311+G(3df,2p)
 hartrees
Energy at 0K-835.885924
Energy at 298.15K 
HF Energy-835.289846
Nuclear repulsion energy141.927175
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 CCSD(T)/6-311+G(3df,2p)
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 3078 3038        
2 A 2695 2660        
3 A 1467 1447        
4 A 1211 1195        
5 A 914 902        
6 A 648 640        
7 A 295 291        
8 A 217 214        
9 B 3134 3093        
10 B 2695 2659        
11 B 1268 1252        
12 B 1012 999        
13 B 782 771        
14 B 715 706        
15 B 239 236        

Unscaled Zero Point Vibrational Energy (zpe) 10184.2 cm-1
Scaled (by 0.9869) Zero Point Vibrational Energy (zpe) 10050.8 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 CCSD(T)/6-311+G(3df,2p)
ABC
0.88627 0.10614 0.09922

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311+G(3df,2p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.782
S2 0.000 1.540 -0.180
S3 0.000 -1.540 -0.180
H4 0.881 -0.053 1.421
H5 -0.881 0.053 1.421
H6 1.103 1.264 -0.890
H7 -1.103 -1.264 -0.890

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81511.81511.08981.08982.36852.3685
S21.81513.07922.42422.35541.34093.0956
S31.81513.07922.35542.42423.09561.3409
H41.08982.42422.35541.76472.66983.2779
H51.08982.35542.42421.76473.27792.6698
H62.36851.34093.09562.66983.27793.3559
H72.36853.09561.34093.27792.66983.3559

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.099 C1 S3 H7 96.099
S2 C1 S3 116.037 S2 C1 H4 110.638
S2 C1 H5 105.620 S3 C1 H4 105.620
S3 C1 H5 110.638 H4 C1 H5 108.121
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability