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

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-874.136634
Energy at 298.15K-874.142940
Nuclear repulsion energy198.993723
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/SDD
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 3287 2960 0.00      
2 Ag 2673 2406 0.00      
3 Ag 1647 1483 0.00      
4 Ag 1482 1334 0.00      
5 Ag 1186 1068 0.00      
6 Ag 942 848 0.00      
7 Ag 747 673 0.00      
8 Ag 292 263 0.00      
9 Au 3373 3037 32.09      
10 Au 1253 1128 1.59      
11 Au 865 779 4.80      
12 Au 151 136 55.34      
13 Au 96 87 34.67      
14 Bg 3353 3019 0.00      
15 Bg 1434 1292 0.00      
16 Bg 1075 968 0.00      
17 Bg 152 136 0.00      
18 Bu 3292 2964 40.24      
19 Bu 2673 2407 57.94      
20 Bu 1645 1481 9.36      
21 Bu 1407 1267 68.61      
22 Bu 941 847 8.28      
23 Bu 709 638 29.92      
24 Bu 215 193 11.75      

Unscaled Zero Point Vibrational Energy (zpe) 17443.4 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 15706.1 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/SDD
ABC
0.83682 0.04852 0.04666

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.762 0.000
C2 0.000 -0.762 0.000
S3 1.792 -1.349 0.000
S4 -1.792 1.349 0.000
H5 1.563 -2.681 0.000
H6 -1.563 2.681 0.000
H7 -0.486 -1.148 0.881
H8 -0.486 -1.148 -0.881
H9 0.486 1.148 0.881
H10 0.486 1.148 -0.881

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.52502.76931.88533.78172.47452.15952.15951.07741.0774
C21.52501.88532.76932.47453.78171.07741.07742.15952.1595
S32.76931.88534.48571.35185.24362.45042.45042.95252.9525
S41.88532.76934.48575.24361.35182.95252.95252.45042.4504
H53.78172.47451.35185.24366.20682.70612.70614.07444.0744
H62.47453.78175.24361.35186.20684.07444.07442.70612.7061
H72.15951.07742.45042.95252.70614.07441.76132.49403.0533
H82.15951.07742.45042.95252.70614.07441.76133.05332.4940
H91.07742.15952.95252.45044.07442.70612.49403.05331.7613
H101.07742.15952.95252.45044.07442.70613.05332.49401.7613

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 108.129 C1 C2 H7 110.985
C1 C2 H8 110.985 C1 S4 H6 98.368
C2 C1 S4 108.129 C2 C1 H9 110.985
C2 C1 H10 110.985 C2 S3 H5 98.368
S3 C2 H7 108.507 S3 C2 H8 108.507
S4 C1 H9 108.507 S4 C1 H10 108.507
H7 C2 H8 109.648 H9 C1 H10 109.648
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.512      
2 C -0.512      
3 S -0.046      
4 S -0.046      
5 H 0.082      
6 H 0.082      
7 H 0.238      
8 H 0.238      
9 H 0.238      
10 H 0.238      


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 9.564 -2.416 0.000
y -2.416 8.807 0.000
z 0.000 0.000 4.117


<r2> (average value of r2) Å2
<r2> 222.925
(<r2>)1/2 14.931