return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for Na2O (disodium monoxide)

using model chemistry: CCD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
1 2 no C2V 1A1

Conformer 1 (D*H)

Jump to S1C2
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-398.769335
Energy at 298.15K-398.770450
HF Energy-398.536167
Nuclear repulsion energy62.480324
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 CCD/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σg 362 343 0.00      
2 Σu 692 656 144.35      
3 Πu 67 64 135.36      
3 Πu 67 64 135.36      

Unscaled Zero Point Vibrational Energy (zpe) 594.0 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 563.1 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 CCD/TZVP
B
0.09138

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.000
Na2 0.000 0.000 2.003
Na3 0.000 0.000 -2.003

Atom - Atom Distances (Å)
  O1 Na2 Na3
O12.00302.0030
Na22.00304.0061
Na32.00304.0061

picture of disodium monoxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Na2 O1 Na3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-398.769335
Energy at 298.15K-398.770790
HF Energy-398.536167
Nuclear repulsion energy62.481042
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 CCD/TZVP
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 362 343 0.00      
2 A1 67 64 135.36      
3 B2 692 656 144.35      

Unscaled Zero Point Vibrational Energy (zpe) 560.3 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 531.2 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 CCD/TZVP
B
0.09138

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 -0.001
Na2 0.000 2.003 0.000
Na3 0.000 -2.003 0.000

Atom - Atom Distances (Å)
  O1 Na2 Na3
O12.00302.0030
Na22.00304.0060
Na32.00304.0060

picture of disodium monoxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Na2 O1 Na3 179.895
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability