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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: B2PLYP/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 B2PLYP/6-31G**
 hartrees
Energy at 0K-836.515781
Energy at 298.15K 
HF Energy-836.383120
Nuclear repulsion energy141.096889
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 B2PLYP/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 238 238 5.64 10.49 0.60 0.75
2 A 306 306 18.88 7.49 0.64 0.78
3 A 647 647 3.68 15.19 0.19 0.32
4 A 925 925 4.40 10.20 0.52 0.69
5 A 1238 1238 1.39 21.27 0.68 0.81
6 A 1490 1490 1.43 17.03 0.74 0.85
7 A 2748 2748 2.84 118.09 0.16 0.27
8 A 3133 3133 9.02 91.04 0.11 0.20
9 B 260 260 43.40 1.04 0.75 0.86
10 B 730 730 1.70 1.40 0.75 0.86
11 B 768 768 28.67 10.58 0.75 0.86
12 B 1034 1034 29.49 7.28 0.75 0.86
13 B 1303 1303 28.06 3.04 0.75 0.86
14 B 2748 2748 8.02 91.84 0.75 0.86
15 B 3196 3196 1.35 65.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10382.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10382.2 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 B2PLYP/6-31G**
ABC
0.89163 0.10412 0.09755

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.777
S2 0.000 1.554 -0.179
S3 0.000 -1.554 -0.179
H4 0.878 -0.055 1.419
H5 -0.878 0.055 1.419
H6 1.114 1.297 -0.879
H7 -1.114 -1.297 -0.879

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.82491.82491.08871.08872.38022.3802
S21.82493.10832.43192.36041.34033.1398
S31.82493.10832.36042.43193.13981.3403
H41.08872.43192.36041.75922.67653.2846
H51.08872.36042.43191.75923.28462.6765
H62.38021.34033.13982.67653.28463.4189
H72.38023.13981.34033.28462.67653.4189

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.322 C1 S3 H7 96.322
S2 C1 S3 116.783 S2 C1 H4 110.611
S2 C1 H5 105.410 S3 C1 H4 105.410
S3 C1 H5 110.611 H4 C1 H5 107.781
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.474      
2 S -0.013      
3 S -0.013      
4 H 0.175      
5 H 0.175      
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 0.415 0.415
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.831 1.926 0.000
y 1.926 -39.270 0.000
z 0.000 0.000 -32.496
Traceless
 xyz
x 4.052 1.926 0.000
y 1.926 -7.106 0.000
z 0.000 0.000 3.054
Polar
3z2-r26.108
x2-y27.438
xy1.926
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.244 0.127 0.000
y 0.127 7.854 0.000
z 0.000 0.000 5.393


<r2> (average value of r2) Å2
<r2> 116.476
(<r2>)1/2 10.792