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All results from a given calculation for S8 (Octasulfur)

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-3166.413312
Energy at 298.15K-3166.414414
HF Energy-3165.329300
Nuclear repulsion energy1206.982967
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 QCISD/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 477 459 0.00      
2 A1 221 213 0.00      
3 B1 437 420 0.00      
4 B2 258 248 7.23      
5 E1 470 452 0.35      
5 E1 470 452 0.35      
6 E1 198 191 2.84      
6 E1 198 191 2.84      
7 E2 477 459 0.00      
7 E2 477 459 0.00      
8 E2 157 151 0.00      
8 E2 157 151 0.00      
9 E2 68 65 0.00      
9 E2 68 65 0.00      
10 E3 452 434 0.00      
10 E3 452 434 0.00      
11 E3 255 245 0.00      
11 E3 255 245 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 2773.4 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 2665.6 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 QCISD/3-21G*
ABC
0.02174 0.02174 0.01187

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

Point Group is D4d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 2.356 0.505
S2 2.356 0.000 0.505
S3 0.000 -2.356 0.505
S4 -2.356 0.000 0.505
S5 -1.666 1.666 -0.505
S6 -1.666 -1.666 -0.505
S7 1.666 -1.666 -0.505
S8 1.666 1.666 -0.505

Atom - Atom Distances (Å)
  S1 S2 S3 S4 S5 S6 S7 S8
S13.33254.71283.33252.06704.46964.46962.0670
S23.33253.33254.71284.46964.46962.06702.0670
S34.71283.33253.33254.46962.06702.06704.4696
S43.33254.71283.33252.06702.06704.46964.4696
S52.06704.46964.46962.06703.33254.71283.3325
S64.46964.46962.06702.06703.33253.33254.7128
S74.46962.06702.06704.46964.71283.33253.3325
S82.06702.06704.46964.46963.33254.71283.3325

picture of Octasulfur state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S5 S4 107.437 S1 S8 S2 107.437
S2 S7 S3 107.437 S3 S6 S4 107.437
S5 S1 S8 107.437 S5 S4 S6 107.437
S6 S3 S7 107.437 S7 S2 S8 107.437
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability