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

using model chemistry: MP2/cc-pVTZ

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 MP2/cc-pVTZ
 hartrees
Energy at 0K-398.860764
Energy at 298.15K 
HF Energy-398.551950
Nuclear repulsion energy61.140067
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 MP2/cc-pVTZ
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 326 310 0.00      
2 Σu 612 581 104.78      
3 Πu 7i 7i 100.84      
3 Πu 7i 7i 100.84      

Unscaled Zero Point Vibrational Energy (zpe) 461.6 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 438.3 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 MP2/cc-pVTZ
B
0.08750

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

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 2.047
Na3 0.000 0.000 -2.047

Atom - Atom Distances (Å)
  O1 Na2 Na3
O12.04692.0469
Na22.04694.0939
Na32.04694.0939

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 MP2/cc-pVTZ
 hartrees
Energy at 0K-398.860765
Energy at 298.15K-398.862038
HF Energy-398.551815
Nuclear repulsion energy61.176265
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 MP2/cc-pVTZ
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 328 311 0.65      
2 A1 14 13 97.71      
3 B2 611 581 104.08      

Unscaled Zero Point Vibrational Energy (zpe) 476.4 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 452.3 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 MP2/cc-pVTZ
ABC
62.47551 0.08796 0.08784

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.111
Na2 0.000 2.042 -0.040
Na3 0.000 -2.042 -0.040

Atom - Atom Distances (Å)
  O1 Na2 Na3
O12.04722.0472
Na22.04724.0832
Na32.04724.0832

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 171.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability