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

using model chemistry: CCD/3-21G*

19 10 17 12 22

States and conformations

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

Conformer 1 (D*H)

Jump to S1C2
Energy calculated at CCD/3-21G*
 hartrees
Energy at 0K-396.300795
Energy at 298.15K 
HF Energy-396.141064
Nuclear repulsion energy64.283679
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/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 Σg 412 394 0.00      
2 Σu 751 719 151.24      
3 Πu 18i 17i 90.20      
3 Πu 18i 17i 90.20      

Unscaled Zero Point Vibrational Energy (zpe) 563.6 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 539.1 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/3-21G*
B
0.09673

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

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 1.947
Na3 0.000 0.000 -1.947

Atom - Atom Distances (Å)
  O1 Na2 Na3
O11.94681.9468
Na21.94683.8937
Na31.94683.8937

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/3-21G*
 hartrees
Energy at 0K-396.300798
Energy at 298.15K-396.302245
HF Energy-396.140959
Nuclear repulsion energy64.314943
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/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 414 396 0.71      
2 A1 26 25 86.87      
3 B2 750 717 150.56      

Unscaled Zero Point Vibrational Energy (zpe) 594.9 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 569.0 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/3-21G*
ABC
63.82204 0.09725 0.09710

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.109
Na2 0.000 1.942 -0.040
Na3 0.000 -1.942 -0.040

Atom - Atom Distances (Å)
  O1 Na2 Na3
O11.94741.9474
Na21.94743.8833
Na31.94743.8833

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 171.212
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability