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

using model chemistry: B2PLYP=FULL/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=FULL/3-21G
 hartrees
Energy at 0K-310.547982
Energy at 298.15K 
HF Energy-310.454661
Nuclear repulsion energy67.578089
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=FULL/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 1047 996 1.79 442.27 0.40 0.57
2 A1 450 428 26.62 13.12 0.16 0.27
3 B2 400 381 4.97 6.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 948.3 cm-1
Scaled (by 0.952) Zero Point Vibrational Energy (zpe) 902.8 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 B2PLYP=FULL/3-21G
ABC
0.99133 0.32497 0.24474

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Na1 0.000 0.000 1.167
O2 0.000 0.729 -0.802
O3 0.000 -0.729 -0.802

Atom - Atom Distances (Å)
  Na1 O2 O3
Na12.09992.0999
O22.09991.4582
O32.09991.4582

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 69.684 Na1 O3 O2 69.684
O2 Na1 O3 40.633
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability