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All results from a given calculation for S8 (Octasulfur)

using model chemistry: HF/3-21G*

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/3-21G*
 hartrees
Energy at 0K-3165.330070
Energy at 298.15K-3165.331733
Nuclear repulsion energy1217.209705
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/3-21G*
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 510 461 0.00      
2 A1 242 218 0.00      
3 B1 519 469 0.00      
4 B2 288 260 9.42      
5 E1 507 457 0.07      
5 E1 507 457 0.07      
6 E1 216 195 2.31      
6 E1 216 195 2.31      
7 E2 526 475 0.00      
7 E2 526 475 0.00      
8 E2 175 158 0.00      
8 E2 175 158 0.00      
9 E2 68 62 0.00      
9 E2 68 62 0.00      
10 E3 523 472 0.00      
10 E3 523 472 0.00      
11 E3 273 247 0.00      
11 E3 273 247 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 3067.6 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 2768.8 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/3-21G*
ABC
0.02212 0.02212 0.01210

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is D4d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 2.334 0.505
S2 2.334 0.000 0.505
S3 0.000 -2.334 0.505
S4 -2.334 0.000 0.505
S5 -1.650 1.650 -0.505
S6 -1.650 -1.650 -0.505
S7 1.650 -1.650 -0.505
S8 1.650 1.650 -0.505

Atom - Atom Distances (Å)
  S1 S2 S3 S4 S5 S6 S7 S8
S13.30104.66833.30102.05204.42954.42952.0520
S23.30103.30104.66834.42954.42952.05202.0520
S34.66833.30103.30104.42952.05202.05204.4295
S43.30104.66833.30102.05202.05204.42954.4295
S52.05204.42954.42952.05203.30104.66833.3010
S64.42954.42952.05202.05203.30103.30104.6683
S74.42952.05202.05204.42954.66833.30103.3010
S82.05202.05204.42954.42953.30104.66833.3010

picture of Octasulfur state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S5 S4 107.092 S1 S8 S2 107.092
S2 S7 S3 107.092 S3 S6 S4 107.092
S5 S1 S8 107.092 S5 S4 S6 107.092
S6 S3 S7 107.092 S7 S2 S8 107.092
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* 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 0.020 0.000 0.000
y 0.000 0.020 0.000
z 0.000 0.000 -0.040
Traceless
 xyz
x 0.030 0.000 0.000
y 0.000 0.030 0.000
z 0.000 0.000 -0.060
Polar
3z2-r2-0.120
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 21.590 0.000 0.000
y 0.000 21.590 0.000
z 0.000 0.000 11.480


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