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All results from a given calculation for S8 (Octasulfur)

using model chemistry: MP2/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D4D 1A1
Energy calculated at MP2/6-311G**
 hartrees
Energy at 0K-3181.261306
Energy at 298.15K-3181.262361
HF Energy-3180.251468
Nuclear repulsion energy1198.112180
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 MP2/6-311G**
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 473 449 0.00      
2 A1 216 205 0.00      
3 B1 420 399 0.00      
4 B2 254 241 8.07      
5 E1 465 442 1.26      
5 E1 465 442 1.26      
6 E1 197 187 3.36      
6 E1 197 187 3.36      
7 E2 470 446 0.00      
7 E2 470 446 0.00      
8 E2 152 145 0.00      
8 E2 152 145 0.00      
9 E2 73 70 0.00      
9 E2 73 70 0.00      
10 E3 439 417 0.00      
10 E3 439 417 0.00      
11 E3 251 239 0.00      
11 E3 251 239 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 2727.6 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 2591.8 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 MP2/6-311G**
ABC
0.02139 0.02139 0.01162

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G**

Point Group is D4d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 2.381 0.496
S2 2.381 0.000 0.496
S3 0.000 -2.381 0.496
S4 -2.381 0.000 0.496
S5 -1.684 1.684 -0.496
S6 -1.684 -1.684 -0.496
S7 1.684 -1.684 -0.496
S8 1.684 1.684 -0.496

Atom - Atom Distances (Å)
  S1 S2 S3 S4 S5 S6 S7 S8
S13.36764.76253.36762.07524.51054.51052.0752
S23.36763.36764.76254.51054.51052.07522.0752
S34.76253.36763.36764.51052.07522.07524.5105
S43.36764.76253.36762.07522.07524.51054.5105
S52.07524.51054.51052.07523.36764.76253.3676
S64.51054.51052.07522.07523.36763.36764.7625
S74.51052.07522.07524.51054.76253.36763.3676
S82.07522.07524.51054.51053.36764.76253.3676

picture of Octasulfur state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S5 S4 108.464 S1 S8 S2 108.464
S2 S7 S3 108.464 S3 S6 S4 108.464
S5 S1 S8 108.464 S5 S4 S6 108.464
S6 S3 S7 108.464 S7 S2 S8 108.464
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability