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All results from a given calculation for S8 (Octasulfur)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D4D 1A1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-79.515120
Energy at 298.15K-79.516810
Nuclear repulsion energy169.346260
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-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 527 473 0.00      
2 A1 234 210 0.00      
3 B1 548 493 0.00      
4 B2 278 250 10.78      
5 E1 526 473 0.37      
5 E1 526 473 0.37      
6 E1 209 188 3.08      
6 E1 209 188 3.08      
7 E2 551 495 0.00      
7 E2 551 495 0.00      
8 E2 170 153 0.00      
8 E2 170 153 0.00      
9 E2 69 62 0.00      
9 E2 69 62 0.00      
10 E3 553 497 0.00      
10 E3 553 497 0.00      
11 E3 264 237 0.00      
11 E3 264 237 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 3135.0 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 2815.2 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-31G*
ABC
0.02165 0.02165 0.01183

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

Point Group is D4d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 2.360 0.509
S2 2.360 0.000 0.509
S3 0.000 -2.360 0.509
S4 -2.360 0.000 0.509
S5 -1.669 1.669 -0.509
S6 -1.669 -1.669 -0.509
S7 1.669 -1.669 -0.509
S8 1.669 1.669 -0.509

Atom - Atom Distances (Å)
  S1 S2 S3 S4 S5 S6 S7 S8
S13.33784.72043.33782.07324.47824.47822.0732
S23.33783.33784.72044.47824.47822.07322.0732
S34.72043.33783.33784.47822.07322.07324.4782
S43.33784.72043.33782.07322.07324.47824.4782
S52.07324.47824.47822.07323.33784.72043.3378
S64.47824.47822.07322.07323.33783.33784.7204
S74.47822.07322.07324.47824.72043.33783.3378
S82.07322.07324.47824.47823.33784.72043.3378

picture of Octasulfur state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S5 S4 107.221 S1 S8 S2 107.221
S2 S7 S3 107.221 S3 S6 S4 107.221
S5 S1 S8 107.221 S5 S4 S6 107.221
S6 S3 S7 107.221 S7 S2 S8 107.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S 0.000      
2 S 0.000      
3 S 0.000      
4 S 0.000      
5 S 0.000      
6 S 0.000      
7 S 0.000      
8 S 0.000      


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 0.001 0.000 0.000
y 0.000 0.001 0.000
z 0.000 0.000 -0.001
Traceless
 xyz
x 0.001 0.000 0.000
y 0.000 0.001 0.000
z 0.000 0.000 -0.002
Polar
3z2-r2-0.003
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 22.505 0.000 0.000
y 0.000 22.505 0.000
z 0.000 0.000 12.352


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000