return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B97D3/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at B97D3/6-31G
 hartrees
Energy at 0K-836.793893
Energy at 298.15K 
HF Energy-836.793893
Nuclear repulsion energy136.259894
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 B97D3/6-31G
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 225 225 8.54 21.82 0.58 0.74
2 A 284 284 27.83 14.53 0.67 0.80
3 A 572 572 5.92 20.47 0.19 0.32
4 A 856 856 4.86 17.51 0.54 0.70
5 A 1188 1188 2.02 26.08 0.69 0.82
6 A 1460 1460 2.23 19.59 0.75 0.86
7 A 2459 2459 16.34 144.47 0.18 0.31
8 A 3083 3083 11.00 101.76 0.10 0.18
9 B 242 242 60.39 3.89 0.75 0.86
10 B 639 639 68.39 8.85 0.75 0.86
11 B 707 707 0.06 5.36 0.75 0.86
12 B 977 977 25.93 11.69 0.75 0.86
13 B 1256 1256 28.32 4.13 0.75 0.86
14 B 2460 2460 61.30 113.49 0.75 0.86
15 B 3167 3167 1.90 68.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9787.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9787.1 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 B97D3/6-31G
ABC
0.82997 0.09679 0.09072

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.816
S2 0.000 1.612 -0.189
S3 0.000 -1.612 -0.189
H4 0.894 -0.055 1.443
H5 -0.894 0.055 1.443
H6 1.174 1.354 -0.874
H7 -1.174 -1.354 -0.874

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.89901.89901.09311.09312.46332.4633
S21.89903.22322.49782.42521.38323.2626
S31.89903.22322.42522.49783.26261.3832
H41.09312.49782.42521.79092.72653.3659
H51.09312.42522.49781.79093.36592.7265
H62.46331.38323.26262.72653.36593.5842
H72.46333.26261.38323.36592.72653.5842

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 95.992 C1 S3 H7 95.992
S2 C1 S3 116.128 S2 C1 H4 110.267
S2 C1 H5 105.089 S3 C1 H4 105.089
S3 C1 H5 110.267 H4 C1 H5 110.013
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.676      
2 S 0.037      
3 S 0.037      
4 H 0.227      
5 H 0.227      
6 H 0.074      
7 H 0.074      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.505 0.505
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.595 2.807 0.000
y 2.807 -40.477 0.000
z 0.000 0.000 -32.494
Traceless
 xyz
x 4.891 2.807 0.000
y 2.807 -8.432 0.000
z 0.000 0.000 3.542
Polar
3z2-r27.083
x2-y28.882
xy2.807
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.349 0.103 0.000
y 0.103 8.602 0.000
z 0.000 0.000 5.226


<r2> (average value of r2) Å2
<r2> 123.731
(<r2>)1/2 11.123