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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G**
 hartrees
Energy at 0K-836.517019
Energy at 298.15K 
HF Energy-836.517019
Nuclear repulsion energy141.504327
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 PBE1PBE/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 238 226 6.00 10.49 0.60 0.75
2 A 308 293 21.51 7.44 0.65 0.79
3 A 654 623 3.70 13.88 0.21 0.34
4 A 921 878 5.14 10.69 0.50 0.67
5 A 1235 1177 1.42 22.85 0.67 0.80
6 A 1481 1412 3.55 17.13 0.74 0.85
7 A 2735 2606 4.02 119.06 0.17 0.28
8 A 3123 2976 6.97 94.06 0.11 0.20
9 B 262 250 49.26 1.03 0.75 0.86
10 B 726 692 1.79 1.96 0.75 0.86
11 B 779 742 31.62 8.89 0.75 0.86
12 B 1029 981 30.93 7.51 0.75 0.86
13 B 1296 1235 24.41 4.20 0.75 0.86
14 B 2734 2606 10.58 99.69 0.75 0.86
15 B 3184 3035 0.74 68.92 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10351.0 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 9865.5 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 PBE1PBE/6-31G**
ABC
0.89409 0.10499 0.09837

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.773
S2 0.000 1.547 -0.179
S3 0.000 -1.547 -0.179
H4 0.879 -0.057 1.420
H5 -0.879 0.057 1.420
H6 1.117 1.289 -0.883
H7 -1.117 -1.289 -0.883

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81671.81671.09271.09272.37742.3774
S21.81673.09502.42892.35581.34603.1288
S31.81673.09502.35582.42893.12881.3460
H41.09272.42892.35581.76202.67723.2872
H51.09272.35582.42891.76203.28722.6772
H62.37741.34603.12882.67723.28723.4116
H72.37743.12881.34603.28722.67723.4116

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 96.337 C1 S3 H7 96.337
S2 C1 S3 116.815 S2 C1 H4 110.729
S2 C1 H5 105.415 S3 C1 H4 105.415
S3 C1 H5 110.729 H4 C1 H5 107.470
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.638      
2 S -0.057      
3 S -0.057      
4 H 0.246      
5 H 0.246      
6 H 0.130      
7 H 0.130      


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 0.418 0.418
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.578 2.072 0.000
y 2.072 -39.293 0.000
z 0.000 0.000 -32.240
Traceless
 xyz
x 4.189 2.072 0.000
y 2.072 -7.384 0.000
z 0.000 0.000 3.195
Polar
3z2-r26.390
x2-y27.715
xy2.072
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.247 0.123 0.000
y 0.123 7.865 0.000
z 0.000 0.000 5.387


<r2> (average value of r2) Å2
<r2> 115.666
(<r2>)1/2 10.755