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All results from a given calculation for S8 (Octasulfur)

using model chemistry: mPW1PW91/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D4D 1A1
Energy calculated at mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-3185.900424
Energy at 298.15K-3185.901573
Nuclear repulsion energy1207.931611
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 mPW1PW91/cc-pVTZ
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 494 473 0.00      
2 A1 219 210 0.00      
3 B1 425 407 0.00      
4 B2 246 236 3.32      
5 E1 488 468 2.27      
5 E1 488 468 2.27      
6 E1 194 187 4.06      
6 E1 194 187 4.06      
7 E2 488 468 0.00      
7 E2 488 468 0.00      
8 E2 149 143 0.00      
8 E2 149 143 0.00      
9 E2 73 70 0.00      
9 E2 73 70 0.00      
10 E3 447 429 0.00      
10 E3 447 429 0.00      
11 E3 253 243 0.00      
11 E3 253 243 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 2784.2 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 2670.6 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 mPW1PW91/cc-pVTZ
ABC
0.02175 0.02175 0.01183

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is D4d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 2.360 0.495
S2 2.360 0.000 0.495
S3 0.000 -2.360 0.495
S4 -2.360 0.000 0.495
S5 -1.669 1.669 -0.495
S6 -1.669 -1.669 -0.495
S7 1.669 -1.669 -0.495
S8 1.669 1.669 -0.495

Atom - Atom Distances (Å)
  S1 S2 S3 S4 S5 S6 S7 S8
S13.33824.72093.33822.05974.47234.47232.0597
S23.33823.33824.72094.47234.47232.05972.0597
S34.72093.33823.33824.47232.05972.05974.4723
S43.33824.72093.33822.05972.05974.47234.4723
S52.05974.47234.47232.05973.33824.72093.3382
S64.47234.47232.05972.05973.33823.33824.7209
S74.47232.05972.05974.47234.72093.33823.3382
S82.05972.05974.47234.47233.33824.72093.3382

picture of Octasulfur state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S5 S4 108.259 S1 S8 S2 108.259
S2 S7 S3 108.259 S3 S6 S4 108.259
S5 S1 S8 108.259 S5 S4 S6 108.259
S6 S3 S7 108.259 S7 S2 S8 108.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ 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 0.269 0.000 0.000
y 0.000 0.269 0.000
z 0.000 0.000 -0.538
Traceless
 xyz
x 0.404 0.000 0.000
y 0.000 0.404 0.000
z 0.000 0.000 -0.807
Polar
3z2-r2-1.615
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 26.931 0.000 0.000
y 0.000 26.931 0.000
z 0.000 0.000 14.470


<r2> (average value of r2) Å2
<r2> 808.077
(<r2>)1/2 28.427