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All results from a given calculation for S8 (Octasulfur)

using model chemistry: HF/CEP-121G*

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-121G*
 hartrees
Energy at 0K-79.520816
Energy at 298.15K-79.522518
Nuclear repulsion energy169.388662
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-121G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 523 472 0.00      
2 A1 234 211 0.00      
3 B1 545 493 0.00      
4 B2 277 250 8.16      
5 E1 522 472 0.21      
5 E1 522 472 0.21      
6 E1 209 189 2.62      
6 E1 209 189 2.62      
7 E2 546 494 0.00      
7 E2 546 494 0.00      
8 E2 169 153 0.00      
8 E2 169 153 0.00      
9 E2 70 63 0.00      
9 E2 70 63 0.00      
10 E3 549 496 0.00      
10 E3 549 496 0.00      
11 E3 264 239 0.00      
11 E3 264 239 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 3118.0 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 2816.8 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-121G*
ABC
0.02166 0.02166 0.01184

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is D4d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 2.360 0.508
S2 2.360 0.000 0.508
S3 0.000 -2.360 0.508
S4 -2.360 0.000 0.508
S5 -1.669 1.669 -0.508
S6 -1.669 -1.669 -0.508
S7 1.669 -1.669 -0.508
S8 1.669 1.669 -0.508

Atom - Atom Distances (Å)
  S1 S2 S3 S4 S5 S6 S7 S8
S13.33714.71943.33712.07264.47714.47712.0726
S23.33713.33714.71944.47714.47712.07262.0726
S34.71943.33713.33714.47712.07262.07264.4771
S43.33714.71943.33712.07262.07264.47714.4771
S52.07264.47714.47712.07263.33714.71943.3371
S64.47714.47712.07262.07263.33713.33714.7194
S74.47712.07262.07264.47714.71943.33713.3371
S82.07262.07264.47714.47713.33714.71943.3371

picture of Octasulfur state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S5 S4 107.230 S1 S8 S2 107.230
S2 S7 S3 107.230 S3 S6 S4 107.230
S5 S1 S8 107.230 S5 S4 S6 107.230
S6 S3 S7 107.230 S7 S2 S8 107.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* 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 0.079 0.000 0.000
y 0.000 0.079 0.000
z 0.000 0.000 -0.158
Traceless
 xyz
x 0.119 0.000 0.000
y 0.000 0.119 0.000
z 0.000 0.000 -0.237
Polar
3z2-r2-0.474
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 23.907 0.000 0.000
y 0.000 23.907 0.000
z 0.000 0.000 13.338


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