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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: wB97X-D/CEP-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 wB97X-D/CEP-31G*
 hartrees
Energy at 0K-28.350050
Energy at 298.15K 
HF Energy-28.350050
Nuclear repulsion energy38.672464
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 wB97X-D/CEP-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 233 233 10.08 18.25 0.65 0.79
2 A 290 290 18.00 12.41 0.69 0.82
3 A 651 651 4.51 19.62 0.15 0.26
4 A 900 900 3.79 10.87 0.44 0.62
5 A 1212 1212 1.41 21.86 0.73 0.84
6 A 1468 1468 2.16 15.99 0.72 0.84
7 A 2721 2721 5.95 137.56 0.16 0.27
8 A 3126 3126 24.84 110.69 0.10 0.18
9 B 239 239 46.05 4.70 0.75 0.86
10 B 712 712 0.86 1.49 0.75 0.86
11 B 782 782 29.33 12.10 0.75 0.86
12 B 1010 1010 31.21 6.26 0.75 0.86
13 B 1284 1284 28.30 1.28 0.75 0.86
14 B 2721 2721 18.35 104.92 0.75 0.86
15 B 3187 3187 7.78 70.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10267.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10267.7 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 wB97X-D/CEP-31G*
ABC
0.86842 0.10331 0.09665

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.790
S2 0.000 1.560 -0.182
S3 0.000 -1.560 -0.182
H4 0.887 -0.054 1.434
H5 -0.887 0.054 1.434
H6 1.123 1.287 -0.892
H7 -1.123 -1.287 -0.892

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.83831.83831.09731.09732.39712.3971
S21.83833.12082.45022.38021.35653.1421
S31.83833.12082.38022.45023.14211.3565
H41.09732.45022.38021.77752.69483.3119
H51.09732.38022.45021.77753.31192.6948
H62.39711.35653.14212.69483.31193.4163
H72.39713.14211.35653.31192.69483.4163

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.060 C1 S3 H7 96.060
S2 C1 S3 116.173 S2 C1 H4 110.607
S2 C1 H5 105.559 S3 C1 H4 105.559
S3 C1 H5 110.607 H4 C1 H5 108.172
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.381      
2 S -0.142      
3 S -0.142      
4 H 0.203      
5 H 0.203      
6 H 0.129      
7 H 0.129      


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 0.350 0.350
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.821 1.924 0.000
y 1.924 -37.929 0.000
z 0.000 0.000 -30.609
Traceless
 xyz
x 4.448 1.924 0.000
y 1.924 -7.714 0.000
z 0.000 0.000 3.265
Polar
3z2-r26.530
x2-y28.108
xy1.924
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.776 -0.138 0.000
y -0.138 8.000 0.000
z 0.000 0.000 5.173


<r2> (average value of r2) Å2
<r2> 65.705
(<r2>)1/2 8.106