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

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-34.236698
Energy at 298.15K-34.243002
Nuclear repulsion energy64.961645
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/CEP-121G
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 3232 2949 0.00      
2 Ag 2693 2458 0.00      
3 Ag 1628 1486 0.00      
4 Ag 1466 1338 0.00      
5 Ag 1178 1075 0.00      
6 Ag 934 853 0.00      
7 Ag 745 680 0.00      
8 Ag 290 265 0.00      
9 Au 3324 3034 22.34      
10 Au 1234 1126 3.18      
11 Au 851 776 3.45      
12 Au 144 131 52.16      
13 Au 95 87 36.91      
14 Bg 3302 3013 0.00      
15 Bg 1415 1291 0.00      
16 Bg 1067 974 0.00      
17 Bg 149 136 0.00      
18 Bu 3235 2952 38.86      
19 Bu 2694 2458 44.18      
20 Bu 1628 1486 7.32      
21 Bu 1382 1261 98.31      
22 Bu 917 836 10.63      
23 Bu 721 658 31.32      
24 Bu 207 189 12.53      

Unscaled Zero Point Vibrational Energy (zpe) 17264.8 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 15754.1 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/CEP-121G
ABC
0.82896 0.04820 0.04634

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.765 0.000
C2 0.000 -0.765 0.000
S3 1.800 -1.351 0.000
S4 -1.800 1.351 0.000
H5 1.560 -2.696 0.000
H6 -1.560 2.696 0.000
H7 -0.484 -1.153 0.884
H8 -0.484 -1.153 -0.884
H9 0.484 1.153 0.884
H10 0.484 1.153 -0.884

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52912.77781.89313.79572.48262.16622.16621.08001.0800
C21.52911.89312.77782.48263.79571.08001.08002.16622.1662
S32.77781.89314.50141.36555.26002.45722.45722.96372.9637
S41.89312.77784.50145.26001.36552.96372.96372.45722.4572
H53.79572.48261.36555.26006.22922.70942.70944.09284.0928
H62.48263.79575.26001.36556.22924.09284.09282.70942.7094
H72.16621.08002.45722.96372.70944.09281.76762.50123.0627
H82.16621.08002.45722.96372.70944.09281.76763.06272.5012
H91.08002.16622.96372.45724.09282.70942.50123.06271.7676
H101.08002.16622.96372.45724.09282.70943.06272.50121.7676

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 108.055 C1 C2 H7 111.080
C1 C2 H8 111.080 C1 S4 H6 97.949
C2 C1 S4 108.055 C2 C1 H9 111.080
C2 C1 H10 111.080 C2 S3 H5 97.949
S3 C2 H7 108.349 S3 C2 H8 108.349
S4 C1 H9 108.349 S4 C1 H10 108.349
H7 C2 H8 109.828 H9 C1 H10 109.828
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.489      
2 C -0.489      
3 S 0.040      
4 S 0.040      
5 H 0.057      
6 H 0.057      
7 H 0.196      
8 H 0.196      
9 H 0.196      
10 H 0.196      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.253 -2.483 0.000
y -2.483 9.390 0.000
z 0.000 0.000 5.559


<r2> (average value of r2) Å2
<r2> 119.706
(<r2>)1/2 10.941