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

using model chemistry: MP2/aug-cc-pVDZ

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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-398.797593
Energy at 298.15K 
HF Energy-398.527837
Nuclear repulsion energy60.912997
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σg 322 309 0.00      
2 Σu 622 596 103.44      
3 Πu 34i 33i 104.10      
3 Πu 34i 33i 104.10      

Unscaled Zero Point Vibrational Energy (zpe) 438.0 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 420.1 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 MP2/aug-cc-pVDZ
B
0.08685

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/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 2.055
Na3 0.000 0.000 -2.055

Atom - Atom Distances (Å)
  O1 Na2 Na3
O12.05462.0546
Na22.05464.1092
Na32.05464.1092

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/aug-cc-pVDZ
 hartrees
Energy at 0K-398.797747
Energy at 298.15K-398.799094
HF Energy-398.526182
Nuclear repulsion energy61.281931
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 340 326 5.37      
2 A1 46 44 70.64      
3 B2 602 577 93.53      

Unscaled Zero Point Vibrational Energy (zpe) 494.2 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 474.0 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 MP2/aug-cc-pVDZ
ABC
4.63671 0.09291 0.09109

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.406
Na2 0.000 1.986 -0.148
Na3 0.000 -1.986 -0.148

Atom - Atom Distances (Å)
  O1 Na2 Na3
O12.06212.0621
Na22.06213.9729
Na32.06213.9729

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 148.859
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability