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All results from a given calculation for S8 (Octasulfur)

using model chemistry: MP2/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 MP2/cc-pVTZ
 hartrees
Energy at 0K-3181.787319
Energy at 298.15K 
HF Energy-3180.408039
Nuclear repulsion energy1211.612662
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/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP2/cc-pVTZ
ABC
0.02191 0.02191 0.01196

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is D4d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 2.348 0.503
S2 2.348 0.000 0.503
S3 0.000 -2.348 0.503
S4 -2.348 0.000 0.503
S5 -1.660 1.660 -0.503
S6 -1.660 -1.660 -0.503
S7 1.660 -1.660 -0.503
S8 1.660 1.660 -0.503

Atom - Atom Distances (Å)
  S1 S2 S3 S4 S5 S6 S7 S8
S13.32034.69563.32032.05904.45314.45312.0590
S23.32033.32034.69564.45314.45312.05902.0590
S34.69563.32033.32034.45312.05902.05904.4531
S43.32034.69563.32032.05902.05904.45314.4531
S52.05904.45314.45312.05903.32034.69563.3203
S64.45314.45312.05902.05903.32033.32034.6956
S74.45312.05902.05904.45314.69563.32033.3203
S82.05902.05904.45314.45313.32034.69563.3203

picture of Octasulfur state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 S5 S4 107.471 S1 S8 S2 107.471
S2 S7 S3 107.471 S3 S6 S4 107.471
S5 S1 S8 107.471 S5 S4 S6 107.471
S6 S3 S7 107.471 S7 S2 S8 107.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability