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All results from a given calculation for NaO2 (Sodium superoxide)

using model chemistry: CISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at CISD/cc-pVDZ
 hartrees
Energy at 0K-311.843079
Energy at 298.15K 
HF Energy-311.499037
Nuclear repulsion energy68.159312
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 CISD/cc-pVDZ
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 1264 1165 19.76      
2 A1 449 414 69.60      
3 B2 402 370 38.90      

Unscaled Zero Point Vibrational Energy (zpe) 1057.3 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 974.6 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 CISD/cc-pVDZ
ABC
1.17293 0.29549 0.23603

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.224
O2 0.000 0.670 -0.841
O3 0.000 -0.670 -0.841

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.17122.1712
O22.17121.3406
O32.17121.3406

picture of Sodium superoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Na1 O2 O3 72.018 Na1 O3 O2 72.018
O2 Na1 O3 35.963
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability