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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP3=FULL/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP3=FULL/3-21G
 hartrees
Energy at 0K-831.318598
Energy at 298.15K 
HF Energy-831.074069
Nuclear repulsion energy136.504581
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 MP3=FULL/3-21G
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 3171 3171 4.70      
2 A 2436 2436 9.68      
3 A 1532 1532 2.70      
4 A 1231 1231 1.13      
5 A 887 887 5.16      
6 A 585 585 5.29      
7 A 281 281 29.77      
8 A 241 241 6.30      
9 B 3239 3239 0.08      
10 B 2435 2435 31.97      
11 B 1299 1299 19.92      
12 B 1006 1006 28.84      
13 B 723 723 0.49      
14 B 702 702 26.59      
15 B 240 240 52.47      

Unscaled Zero Point Vibrational Energy (zpe) 10003.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10003.8 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 MP3=FULL/3-21G
ABC
0.81420 0.09782 0.09133

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.831
S2 0.000 1.604 -0.191
S3 0.000 -1.604 -0.191
H4 0.890 -0.050 1.454
H5 -0.890 0.050 1.454
H6 1.155 1.334 -0.889
H7 -1.155 -1.334 -0.889

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.90201.90201.08781.08782.46452.4645
S21.90203.20742.49722.43171.37613.2329
S31.90203.20742.43172.49723.23291.3761
H41.08782.49722.43171.78362.73453.3649
H51.08782.43172.49721.78363.36492.7345
H62.46451.37613.23292.73453.36493.5292
H72.46453.23291.37613.36492.73453.5292

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.168 C1 S3 H7 96.168
S2 C1 S3 114.952 S2 C1 H4 110.294
S2 C1 H5 105.594 S3 C1 H4 105.594
S3 C1 H5 110.294 H4 C1 H5 110.143
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability