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All results from a given calculation for HSCH2SH (Methanedithiol)

using model chemistry: HF/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 HF/6-31G**
 hartrees
Energy at 0K-835.215856
Energy at 298.15K 
HF Energy-835.215856
Nuclear repulsion energy141.930095
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 HF/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 257 232 8.14 10.82 0.64 0.78
2 A 316 285 19.50 6.68 0.61 0.76
3 A 695 628 4.91 23.63 0.17 0.29
4 A 992 895 4.34 10.07 0.61 0.76
5 A 1329 1200 0.95 20.02 0.71 0.83
6 A 1588 1433 1.52 16.40 0.75 0.86
7 A 2897 2615 2.93 133.64 0.17 0.29
8 A 3255 2938 12.44 92.67 0.14 0.24
9 B 264 239 42.08 0.92 0.75 0.86
10 B 779 703 0.72 2.12 0.75 0.86
11 B 842 760 24.09 17.74 0.75 0.86
12 B 1116 1007 36.13 6.25 0.75 0.86
13 B 1403 1266 26.58 0.37 0.75 0.86
14 B 2897 2614 7.11 109.15 0.75 0.86
15 B 3317 2994 1.64 70.11 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10972.8 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 9904.1 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 HF/6-31G**
ABC
0.89966 0.10538 0.09868

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.775
S2 0.000 1.544 -0.179
S3 0.000 -1.544 -0.179
H4 0.871 -0.049 1.412
H5 -0.871 0.049 1.412
H6 1.105 1.321 -0.879
H7 -1.105 -1.321 -0.879

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81461.81461.08031.08032.38752.3875
S21.81463.08812.41352.35031.32693.1497
S31.81463.08812.35032.41353.14971.3269
H41.08032.41352.35031.74502.67903.2817
H51.08032.35032.41351.74503.28172.6790
H62.38751.32693.14972.67903.28173.4446
H72.38753.14971.32693.28172.67903.4446

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 97.716 C1 S3 H7 97.716
S2 C1 S3 116.617 S2 C1 H4 110.374
S2 C1 H5 105.746 S3 C1 H4 105.746
S3 C1 H5 110.374 H4 C1 H5 107.739
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.521      
2 S 0.009      
3 S 0.009      
4 H 0.186      
5 H 0.186      
6 H 0.066      
7 H 0.066      


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 0.448 0.448
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.099 2.154 0.000
y 2.154 -39.895 0.000
z 0.000 0.000 -32.721
Traceless
 xyz
x 4.209 2.154 0.000
y 2.154 -7.485 0.000
z 0.000 0.000 3.276
Polar
3z2-r26.552
x2-y27.796
xy2.154
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.192 0.190 0.000
y 0.190 7.458 0.000
z 0.000 0.000 5.368


<r2> (average value of r2) Å2
<r2> 115.699
(<r2>)1/2 10.756