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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-876.243423
Energy at 298.15K-876.249663
Nuclear repulsion energy202.636375
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 mPW1PW91/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Ag 3089 2948 0.00      
2 Ag 2667 2545 0.00      
3 Ag 1510 1441 0.00      
4 Ag 1361 1299 0.00      
5 Ag 1124 1073 0.00      
6 Ag 911 870 0.00      
7 Ag 750 716 0.00      
8 Ag 283 270 0.00      
9 Au 3162 3018 12.13      
10 Au 1159 1106 11.95      
11 Au 794 758 8.08      
12 Au 161 154 38.33      
13 Au 91 87 25.96      
14 Bg 3138 2995 0.00      
15 Bg 1326 1265 0.00      
16 Bg 990 945 0.00      
17 Bg 168 160 0.00      
18 Bu 3098 2956 31.63      
19 Bu 2667 2546 18.57      
20 Bu 1512 1443 6.03      
21 Bu 1275 1216 68.70      
22 Bu 905 864 4.32      
23 Bu 732 699 7.29      
24 Bu 201 192 8.21      

Unscaled Zero Point Vibrational Energy (zpe) 16536.8 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 15782.7 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 mPW1PW91/6-311G*
ABC
0.84173 0.05085 0.04884

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.758 0.000
C2 0.000 -0.758 0.000
S3 1.737 -1.334 0.000
S4 -1.737 1.334 0.000
H5 1.456 -2.653 0.000
H6 -1.456 2.653 0.000
H7 -0.508 -1.135 0.888
H8 -0.508 -1.135 -0.888
H9 0.508 1.135 0.888
H10 0.508 1.135 -0.888

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.51602.71891.82993.70872.38982.15182.15181.09021.0902
C21.51601.82992.71892.38983.70871.09021.09022.15182.1518
S32.71891.82994.38001.34865.10792.42252.42252.89712.8971
S41.82992.71894.38005.10791.34862.89712.89712.42252.4225
H53.70872.38981.34865.10796.05262.63662.63664.00444.0044
H62.38983.70875.10791.34866.05264.00444.00442.63662.6366
H72.15181.09022.42252.89712.63664.00441.77552.48733.0560
H82.15181.09022.42252.89712.63664.00441.77553.05602.4873
H91.09022.15182.89712.42254.00442.63662.48733.05601.7755
H101.09022.15182.89712.42254.00442.63663.05602.48731.7755

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 108.338 C1 C2 H7 110.235
C1 C2 H8 110.235 C1 S4 H6 96.330
C2 C1 S4 108.338 C2 C1 H9 110.235
C2 C1 H10 110.235 C2 S3 H5 96.330
S3 C2 H7 109.492 S3 C2 H8 109.492
S4 C1 H9 109.492 S4 C1 H10 109.492
H7 C2 H8 109.033 H9 C1 H10 109.033
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.609      
2 C -0.609      
3 S -0.105      
4 S -0.105      
5 H 0.164      
6 H 0.164      
7 H 0.275      
8 H 0.275      
9 H 0.275      
10 H 0.275      


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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 213.888
(<r2>)1/2 14.625