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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-876.198244
Energy at 298.15K-876.204540
Nuclear repulsion energy202.972904
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 B1B95/6-31G*
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 3109 2951 0.00      
2 Ag 2746 2607 0.00      
3 Ag 1521 1444 0.00      
4 Ag 1361 1292 0.00      
5 Ag 1126 1069 0.00      
6 Ag 916 870 0.00      
7 Ag 755 716 0.00      
8 Ag 280 266 0.00      
9 Au 3183 3022 9.97      
10 Au 1152 1094 5.25      
11 Au 791 751 3.89      
12 Au 185 176 43.83      
13 Au 96 91 16.32      
14 Bg 3162 3001 0.00      
15 Bg 1319 1252 0.00      
16 Bg 989 939 0.00      
17 Bg 191 181 0.00      
18 Bu 3117 2959 25.42      
19 Bu 2747 2607 32.68      
20 Bu 1521 1444 5.87      
21 Bu 1268 1204 58.06      
22 Bu 907 861 5.44      
23 Bu 741 703 7.28      
24 Bu 197 187 8.73      

Unscaled Zero Point Vibrational Energy (zpe) 16689.8 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 15843.7 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 B1B95/6-31G*
ABC
0.84084 0.05108 0.04905

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.485 0.584 0.000
C2 -0.485 -0.584 0.000
S3 0.485 -2.130 0.000
S4 -0.485 2.130 0.000
H5 -0.566 -2.966 0.000
H6 0.566 2.966 0.000
H7 -1.118 -0.546 0.888
H8 -1.118 -0.546 -0.888
H9 1.118 0.546 0.888
H10 1.118 0.546 -0.888

Atom - Atom Distances (Å)
  C1 C2 S3 S4 H5 H6 H7 H8 H9 H10
C11.51772.71401.82573.70232.38412.15272.15271.09131.0913
C21.51771.82572.71402.38413.70231.09131.09132.15272.1527
S32.71401.82574.36981.34305.09742.42292.42292.88972.8897
S41.82572.71404.36985.09741.34302.88972.88972.42292.4229
H53.70232.38411.34305.09746.03972.63692.63693.99493.9949
H62.38413.70235.09741.34306.03973.99493.99492.63692.6369
H72.15271.09132.42292.88972.63693.99491.77562.48873.0572
H82.15271.09132.42292.88972.63693.99491.77563.05722.4887
H91.09132.15272.88972.42293.99492.63692.48873.05721.7756
H101.09132.15272.88972.42293.99492.63693.05722.48871.7756

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 108.185 C1 C2 H7 110.128
C1 C2 H8 110.128 C1 S4 H6 96.405
C2 C1 S4 108.185 C2 C1 H9 110.128
C2 C1 H10 110.128 C2 S3 H5 96.405
S3 C2 H7 109.750 S3 C2 H8 109.750
S4 C1 H9 109.750 S4 C1 H10 109.750
H7 C2 H8 108.890 H9 C1 H10 108.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.469      
2 C -0.469      
3 S -0.073      
4 S -0.073      
5 H 0.110      
6 H 0.110      
7 H 0.216      
8 H 0.216      
9 H 0.216      
10 H 0.216      


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 -39.786 7.316 0.000
y 7.316 -39.287 0.000
z 0.000 0.000 -42.683
Traceless
 xyz
x 1.198 7.316 0.000
y 7.316 1.948 0.000
z 0.000 0.000 -3.146
Polar
3z2-r2-6.293
x2-y2-0.500
xy7.316
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.987 -0.484 0.000
y -0.484 10.727 0.000
z 0.000 0.000 5.623


<r2> (average value of r2) Å2
<r2> 212.608
(<r2>)1/2 14.581