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

using model chemistry: B2PLYP=FULLultrafine/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at B2PLYP=FULLultrafine/3-21G*
 hartrees
Energy at 0K-310.567161
Energy at 298.15K 
HF Energy-310.472743
Nuclear repulsion energy68.038706
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 B2PLYP=FULLultrafine/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 1042 1042 3.12 256.15 0.45 0.62
2 A1 470 470 34.56 6.09 0.15 0.26
3 B2 412 412 6.11 3.80 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 962.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 962.1 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 B2PLYP=FULLultrafine/3-21G*
ABC
0.99247 0.33243 0.24902

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.154
O2 0.000 0.729 -0.793
O3 0.000 -0.729 -0.793

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.07892.0789
O22.07891.4573
O32.07891.4573

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 69.482 Na1 O3 O2 69.482
O2 Na1 O3 41.036
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability