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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP3=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-835.942815
Energy at 298.15K 
HF Energy-835.256574
Nuclear repulsion energy141.645510
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/6-311G*
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 3136 3136 9.05      
2 A 2658 2658 2.56      
3 A 1490 1490 2.56      
4 A 1262 1262 2.46      
5 A 935 935 6.15      
6 A 668 668 2.59      
7 A 307 307 17.03      
8 A 249 249 8.80      
9 B 3192 3192 1.26      
10 B 2658 2658 7.91      
11 B 1337 1337 20.04      
12 B 1051 1051 36.31      
13 B 806 806 23.09      
14 B 733 733 1.13      
15 B 261 261 42.19      

Unscaled Zero Point Vibrational Energy (zpe) 10371.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10371.6 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 MP3=FULL/6-311G*
ABC
0.89533 0.10517 0.09863

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-311G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.772
S2 0.000 1.546 -0.180
S3 0.000 -1.546 -0.180
H4 0.876 -0.051 1.416
H5 -0.876 0.051 1.416
H6 1.137 1.296 -0.856
H7 -1.137 -1.296 -0.856

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81521.81521.08891.08892.37122.3712
S21.81523.09112.42202.35551.34643.1342
S31.81523.09112.35552.42203.13421.3464
H41.08892.42202.35551.75572.65443.2812
H51.08892.35552.42201.75573.28122.6544
H62.37121.34643.13422.65443.28123.4481
H72.37123.13421.34643.28122.65443.4481

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.047 C1 S3 H7 96.047
S2 C1 S3 116.736 S2 C1 H4 110.518
S2 C1 H5 105.670 S3 C1 H4 105.670
S3 C1 H5 110.518 H4 C1 H5 107.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability