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All results from a given calculation for S8 (Octasulfur)

using model chemistry: HF/SDD

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/SDD
 hartrees
Energy at 0K-3179.740936
Energy at 298.15K-3179.741325
Nuclear repulsion energy1124.178511
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 A1 414 373 0.00      
2 A1 180 162 0.00      
3 B1 456 411 0.00      
4 B2 217 195 4.23      
5 E1 418 376 0.71      
5 E1 418 376 0.71      
6 E1 161 145 0.37      
6 E1 161 145 0.37      
7 E2 447 403 0.00      
7 E2 447 403 0.00      
8 E2 137 124 0.00      
8 E2 137 124 0.00      
9 E2 45 40 0.00      
9 E2 45 40 0.00      
10 E3 458 412 0.00      
10 E3 458 412 0.00      
11 E3 202 182 0.00      
11 E3 202 182 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 2501.2 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 2252.1 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
0.01894 0.01894 0.01047

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

Point Group is D4d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 2.509 0.577
S2 2.509 0.000 0.577
S3 0.000 -2.509 0.577
S4 -2.509 0.000 0.577
S5 -1.774 1.774 -0.577
S6 -1.774 -1.774 -0.577
S7 1.774 -1.774 -0.577
S8 1.774 1.774 -0.577

Atom - Atom Distances (Å)
  S1 S2 S3 S4 S5 S6 S7 S8
S13.54805.01763.54802.23984.77704.77702.2398
S23.54803.54805.01764.77704.77702.23982.2398
S35.01763.54803.54804.77702.23982.23984.7770
S43.54805.01763.54802.23982.23984.77704.7770
S52.23984.77704.77702.23983.54805.01763.5480
S64.77704.77702.23982.23983.54803.54805.0176
S74.77702.23982.23984.77705.01763.54803.5480
S82.23982.23984.77704.77703.54805.01763.5480

picture of Octasulfur state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S5 S4 104.750 S1 S8 S2 104.750
S2 S7 S3 104.750 S3 S6 S4 104.750
S5 S1 S8 104.750 S5 S4 S6 104.750
S6 S3 S7 104.750 S7 S2 S8 104.750
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD 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 -0.170 0.000 0.000
y 0.000 -0.170 0.000
z 0.000 0.000 0.339
Traceless
 xyz
x -0.255 0.000 0.000
y 0.000 -0.255 0.000
z 0.000 0.000 0.509
Polar
3z2-r21.018
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 28.008 0.000 0.000
y 0.000 28.008 0.000
z 0.000 0.000 13.861


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