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

using model chemistry: HF/3-21G*

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/3-21G*
 hartrees
Energy at 0K-870.118112
Energy at 298.15K-870.124605
Nuclear repulsion energy202.270256
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/3-21G*
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 3244 2928 0.00      
2 Ag 2892 2610 0.00      
3 Ag 1653 1492 0.00      
4 Ag 1482 1337 0.00      
5 Ag 1162 1049 0.00      
6 Ag 951 859 0.00      
7 Ag 787 710 0.00      
8 Ag 305 275 0.00      
9 Au 3314 2991 8.25      
10 Au 1275 1150 3.21      
11 Au 854 771 5.00      
12 Au 175 158 46.18      
13 Au 101 91 18.24      
14 Bg 3290 2970 0.00      
15 Bg 1452 1310 0.00      
16 Bg 1067 963 0.00      
17 Bg 188 170 0.00      
18 Bu 3253 2936 22.98      
19 Bu 2892 2610 26.78      
20 Bu 1656 1495 11.45      
21 Bu 1413 1275 47.07      
22 Bu 1005 907 8.23      
23 Bu 763 688 8.75      
24 Bu 224 202 8.26      

Unscaled Zero Point Vibrational Energy (zpe) 17697.1 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 15973.4 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/3-21G*
ABC
0.84373 0.05039 0.04841

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.771 0.000
C2 0.000 -0.771 0.000
S3 1.734 -1.352 0.000
S4 -1.734 1.352 0.000
H5 1.478 -2.654 0.000
H6 -1.478 2.654 0.000
H7 -0.506 -1.137 0.881
H8 -0.506 -1.137 -0.881
H9 0.506 1.137 0.881
H10 0.506 1.137 -0.881

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.54122.74071.82893.73002.39432.16112.16111.08011.0801
C21.54121.82892.74072.39433.73001.08011.08012.16112.1611
S32.74071.82894.39751.32715.13482.41692.41692.91152.9115
S41.82892.74074.39755.13481.32712.91152.91152.41692.4169
H53.73002.39431.32715.13486.07582.64892.64894.01134.0113
H62.39433.73005.13481.32716.07584.01134.01132.64892.6489
H72.16111.08012.41692.91152.64894.01131.76212.48873.0494
H82.16111.08012.41692.91152.64894.01131.76213.04942.4887
H91.08012.16112.91152.41694.01132.64892.48873.04941.7621
H101.08012.16112.91152.41694.01132.64893.04942.48871.7621

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 108.529 C1 C2 H7 109.817
C1 C2 H8 109.817 C1 S4 H6 97.414
C2 C1 S4 108.529 C2 C1 H9 109.817
C2 C1 H10 109.817 C2 S3 H5 97.414
S3 C2 H7 109.673 S3 C2 H8 109.673
S4 C1 H9 109.673 S4 C1 H10 109.673
H7 C2 H8 109.318 H9 C1 H10 109.318
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.603 -0.093    
2 C -0.603 -0.093    
3 S -0.037 -0.356    
4 S -0.037 -0.356    
5 H 0.125 0.203    
6 H 0.125 0.203    
7 H 0.257 0.123    
8 H 0.257 0.123    
9 H 0.257 0.123    
10 H 0.257 0.123    


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 0.000 0.000 0.000 0.000
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 8.368 -1.900 0.000
y -1.900 8.362 0.000
z 0.000 0.000 4.889


<r2> (average value of r2) Å2
<r2> 215.664
(<r2>)1/2 14.685