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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-835.695456
Energy at 298.15K 
HF Energy-835.270678
Nuclear repulsion energy141.933239
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 MP2/6-311G**
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 242 230 7.66 10.34 0.66 0.80
2 A 309 294 14.38 9.01 0.68 0.81
3 A 669 635 2.36 12.91 0.16 0.27
4 A 933 887 5.50 6.25 0.45 0.62
5 A 1245 1183 2.36 12.97 0.66 0.79
6 A 1452 1379 0.90 12.67 0.73 0.85
7 A 2803 2664 0.33 134.49 0.16 0.27
8 A 3128 2972 9.36 98.01 0.09 0.17
9 B 264 251 37.94 2.58 0.75 0.86
10 B 729 692 0.92 0.64 0.75 0.86
11 B 807 767 25.24 8.88 0.75 0.86
12 B 1039 987 36.05 4.59 0.75 0.86
13 B 1314 1249 27.11 0.95 0.75 0.86
14 B 2803 2663 1.64 90.40 0.75 0.86
15 B 3187 3029 1.27 64.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10461.3 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 9940.3 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 MP2/6-311G**
ABC
0.90187 0.10542 0.09889

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.769
S2 0.000 1.544 -0.180
S3 0.000 -1.544 -0.180
H4 0.877 -0.054 1.415
H5 -0.877 0.054 1.415
H6 1.130 1.289 -0.844
H7 -1.130 -1.289 -0.844

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81221.81221.09071.09072.35392.3539
S21.81223.08792.42202.35241.33523.1218
S31.81223.08792.35242.42203.12181.3352
H41.09072.42202.35241.75762.64033.2647
H51.09072.35242.42201.75763.26472.6403
H62.35391.33523.12182.64033.26473.4288
H72.35393.12181.33523.26472.64033.4288

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.622 C1 S3 H7 95.622
S2 C1 S3 116.855 S2 C1 H4 110.620
S2 C1 H5 105.552 S3 C1 H4 105.552
S3 C1 H5 110.620 H4 C1 H5 107.354
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability