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All results from a given calculation for CH2SHCH2SH (1,2-Ethanedithiol)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-876.089259
Energy at 298.15K-876.095381
Nuclear repulsion energy202.535453
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 B3PW91/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3071 2952 0.00      
2 Ag 2709 2604 0.00      
3 Ag 1481 1424 0.00      
4 Ag 1318 1267 0.00      
5 Ag 1105 1062 0.00      
6 Ag 899 864 0.00      
7 Ag 744 715 0.00      
8 Ag 278 267 0.00      
9 Au 3147 3026 6.34      
10 Au 1118 1075 3.93      
11 Au 774 744 3.01      
12 Au 147 141 24.08      
13 Au 79 76 24.67      
14 Bg 3124 3004 0.00      
15 Bg 1292 1242 0.00      
16 Bg 962 925 0.00      
17 Bg 151 146 0.00      
18 Bu 3080 2961 21.22      
19 Bu 2709 2605 5.94      
20 Bu 1484 1427 5.06      
21 Bu 1233 1186 46.50      
22 Bu 890 856 2.33      
23 Bu 729 701 7.12      
24 Bu 197 189 7.13      

Unscaled Zero Point Vibrational Energy (zpe) 16360.3 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 15728.8 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 B3PW91/6-31G(2df,p)
ABC
0.83862 0.05082 0.04880

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.761 0.000
C2 0.000 -0.761 0.000
S3 1.736 -1.335 0.000
S4 -1.736 1.335 0.000
H5 1.464 -2.651 0.000
H6 -1.464 2.651 0.000
H7 -0.509 -1.140 0.890
H8 -0.509 -1.140 -0.890
H9 0.509 1.140 0.890
H10 0.509 1.140 -0.890

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52222.72191.82863.71342.39112.16012.16011.09291.0929
C21.52221.82862.72192.39113.71341.09291.09292.16012.1601
S32.72191.82864.38041.34405.11232.42282.42282.90272.9027
S41.82862.72194.38045.11231.34402.90272.90272.42282.4228
H53.71342.39111.34405.11236.05782.63982.63984.01024.0102
H62.39113.71345.11231.34406.05784.01024.01022.63982.6398
H72.16011.09292.42282.90272.63984.01021.77962.49733.0665
H82.16011.09292.42282.90272.63984.01021.77963.06652.4973
H91.09292.16012.90272.42284.01022.63982.49733.06651.7796
H101.09292.16012.90272.42284.01022.63983.06652.49731.7796

picture of 1,2-Ethanedithiol state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 S3 108.295 C1 C2 H7 110.302
C1 C2 H8 110.302 C1 S4 H6 96.626
C2 C1 S4 108.295 C2 C1 H9 110.302
C2 C1 H10 110.302 C2 S3 H5 96.626
S3 C2 H7 109.458 S3 C2 H8 109.458
S4 C1 H9 109.458 S4 C1 H10 109.458
H7 C2 H8 109.010 H9 C1 H10 109.010
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.265      
2 C -0.265      
3 S -0.261      
4 S -0.261      
5 H 0.176      
6 H 0.176      
7 H 0.175      
8 H 0.175      
9 H 0.175      
10 H 0.175      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.289 1.477 0.000
y 1.477 -32.697 0.000
z 0.000 0.000 -42.472
Traceless
 xyz
x -8.704 1.477 0.000
y 1.477 11.683 0.000
z 0.000 0.000 -2.979
Polar
3z2-r2-5.958
x2-y2-13.591
xy1.477
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.771 -2.080 0.000
y -2.080 9.349 0.000
z 0.000 0.000 6.590


<r2> (average value of r2) Å2
<r2> 213.493
(<r2>)1/2 14.611