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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-835.204999
Energy at 298.15K 
HF Energy-835.204999
Nuclear repulsion energy141.945545
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 260 234 7.37 10.77 0.63 0.77
2 A 317 285 20.62 6.95 0.63 0.77
3 A 697 626 4.87 23.83 0.17 0.30
4 A 997 896 4.46 10.43 0.62 0.77
5 A 1340 1204 1.19 21.28 0.71 0.83
6 A 1605 1443 1.38 16.92 0.75 0.86
7 A 2919 2623 5.34 134.92 0.19 0.32
8 A 3278 2945 12.95 91.49 0.15 0.25
9 B 268 241 42.73 0.95 0.75 0.86
10 B 785 705 0.79 2.12 0.75 0.86
11 B 843 758 24.48 17.90 0.75 0.86
12 B 1124 1010 37.90 6.54 0.75 0.86
13 B 1416 1273 28.12 0.51 0.75 0.86
14 B 2918 2622 12.61 117.32 0.75 0.86
15 B 3337 2998 1.79 71.52 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11052.7 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 9930.8 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
0.89929 0.10542 0.09870

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 0.870 -0.049 1.412
H5 -0.870 0.049 1.412
H6 1.104 1.319 -0.878
H7 -1.104 -1.319 -0.878

Atom - Atom Distances (Å)
  C1 S2 S3 H4 H5 H6 H7
C11.81481.81481.07981.07982.38552.3855
S21.81483.08782.41362.35061.32613.1467
S31.81483.08782.35062.41363.14671.3261
H41.07982.41362.35061.74362.67763.2798
H51.07982.35062.41361.74363.27982.6776
H62.38551.32613.14672.67763.27983.4397
H72.38553.14671.32613.27982.67763.4397

picture of Methanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 S2 H6 97.622 C1 S3 H7 97.622
S2 C1 S3 116.578 S2 C1 H4 110.397
S2 C1 H5 105.773 S3 C1 H4 105.773
S3 C1 H5 110.397 H4 C1 H5 107.672
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 -0.613      
2 S -0.035      
3 S -0.035      
4 H 0.233      
5 H 0.233      
6 H 0.109      
7 H 0.109      


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 0.444 0.444
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.171 2.174 0.000
y 2.174 -39.979 0.000
z 0.000 0.000 -32.793
Traceless
 xyz
x 4.215 2.174 0.000
y 2.174 -7.498 0.000
z 0.000 0.000 3.282
Polar
3z2-r26.564
x2-y27.809
xy2.174
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.153 0.182 0.000
y 0.182 7.396 0.000
z 0.000 0.000 5.313


<r2> (average value of r2) Å2
<r2> 115.719
(<r2>)1/2 10.757