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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-836.816915
Energy at 298.15K 
HF Energy-836.816915
Nuclear repulsion energy138.621749
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 BLYP/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 216 215 6.89 13.83 0.58 0.73
2 A 284 282 16.47 8.43 0.60 0.75
3 A 589 585 3.24 15.24 0.20 0.33
4 A 870 863 3.38 11.64 0.43 0.61
5 A 1175 1166 1.78 22.14 0.67 0.80
6 A 1425 1415 0.97 18.03 0.75 0.85
7 A 2582 2562 4.77 123.55 0.16 0.27
8 A 3020 2997 10.36 96.17 0.11 0.20
9 B 249 247 43.79 1.46 0.75 0.86
10 B 665 660 48.78 3.94 0.75 0.86
11 B 692 687 3.38 6.23 0.75 0.86
12 B 978 970 24.33 8.61 0.75 0.86
13 B 1231 1222 35.06 4.57 0.75 0.86
14 B 2582 2562 15.06 91.07 0.75 0.86
15 B 3081 3057 2.20 67.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9818.8 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 9743.2 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 BLYP/6-31G**
ABC
0.87798 0.09970 0.09370

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.781
S2 0.000 1.588 -0.181
S3 0.000 -1.588 -0.181
H4 0.888 -0.060 1.424
H5 -0.888 0.060 1.424
H6 1.147 1.347 -0.872
H7 -1.147 -1.347 -0.872

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.85631.85631.09801.09802.42072.4207
S21.85633.17532.46552.38721.36033.2253
S31.85633.17532.38722.46553.22531.3603
H41.09802.46552.38721.77972.70473.3266
H51.09802.38722.46551.77973.32662.7047
H62.42071.36033.22532.70473.32663.5378
H72.42073.22531.36033.32662.70473.5378

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.404 C1 S3 H7 96.404
S2 C1 S3 117.580 S2 C1 H4 110.498
S2 C1 H5 104.889 S3 C1 H4 104.889
S3 C1 H5 110.498 H4 C1 H5 108.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.424      
2 S -0.026      
3 S -0.026      
4 H 0.165      
5 H 0.165      
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 0.453 0.453
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.552 1.985 0.000
y 1.985 -38.926 0.000
z 0.000 0.000 -32.521
Traceless
 xyz
x 4.171 1.985 0.000
y 1.985 -6.890 0.000
z 0.000 0.000 2.718
Polar
3z2-r25.437
x2-y27.374
xy1.985
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.440 0.163 0.000
y 0.163 8.593 0.000
z 0.000 0.000 5.510


<r2> (average value of r2) Å2
<r2> 120.226
(<r2>)1/2 10.965