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

using model chemistry: CCSD(T)/aug-cc-pVQZ

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 CCSD(T)/aug-cc-pVQZ
 hartrees
Energy at 0K-398.891763
Energy at 298.15K-398.892727
HF Energy-398.561847
Nuclear repulsion energy61.844127
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 CCSD(T)/aug-cc-pVQZ
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 343 330 0.00      
2 Σu 659 633 0.00      
3 Πu 37 36 0.00      
3 Πu 37 36 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 537.9 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 517.2 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 CCSD(T)/aug-cc-pVQZ
B
0.08954

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pVQZ

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 2.023
Na3 0.000 0.000 -2.023

Atom - Atom Distances (Å)
  O1 Na2 Na3
O12.02352.0235
Na22.02354.0469
Na32.02354.0469

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 CCSD(T)/aug-cc-pVQZ
 hartrees
Energy at 0K-398.891763
Energy at 298.15K-398.893121
HF Energy-398.561858
Nuclear repulsion energy61.852867
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 CCSD(T)/aug-cc-pVQZ
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 343 330        
2 A1 35 34        
3 B2 659 633        

Unscaled Zero Point Vibrational Energy (zpe) 518.6 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 498.6 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 CCSD(T)/aug-cc-pVQZ
B
0.08955

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pVQZ

Point Group is C2v

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability