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: MP3=FULL/aug-cc-pVDZ

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 MP3=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-398.781279
Energy at 298.15K-398.782387
HF Energy-398.529909
Nuclear repulsion energy63.476553
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 MP3=FULL/aug-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 Σg 397 397 0.00      
2 Σu 749 749 181.62      
3 Πu 49 49 174.73      
3 Πu 49 49 174.73      

Unscaled Zero Point Vibrational Energy (zpe) 621.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 621.8 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 MP3=FULL/aug-cc-pVDZ
B
0.09432

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/aug-cc-pVDZ

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 1.972
Na3 0.000 0.000 -1.972

Atom - Atom Distances (Å)
  O1 Na2 Na3
O11.97161.9716
Na21.97163.9432
Na31.97163.9432

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 MP3=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-398.781279
Energy at 298.15K-398.782764
HF Energy-398.529916
Nuclear repulsion energy63.453617
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 MP3=FULL/aug-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 396 396 0.00      
2 A1 51 51 174.75      
3 B2 748 748 181.78      

Unscaled Zero Point Vibrational Energy (zpe) 597.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 597.4 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 MP3=FULL/aug-cc-pVDZ
B
0.09425

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 -0.000
Na2 0.000 1.972 0.000
Na3 0.000 -1.972 0.000

Atom - Atom Distances (Å)
  O1 Na2 Na3
O11.97231.9723
Na21.97233.9446
Na31.97233.9446

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 179.975
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability