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: HF/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 HF/aug-cc-pVQZ
 hartrees
Energy at 0K-398.562837
Energy at 298.15K-398.564053
HF Energy-398.562837
Nuclear repulsion energy63.376799
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 HF/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 378 344 0.00      
2 Σu 728 662 190.09      
3 Πu 86 78 182.75      
3 Πu 86 78 182.75      

Unscaled Zero Point Vibrational Energy (zpe) 638.8 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 580.4 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 HF/aug-cc-pVQZ
B
0.09402

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/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 1.975
Na3 0.000 0.000 -1.975

Atom - Atom Distances (Å)
  O1 Na2 Na3
O11.97471.9747
Na21.97473.9494
Na31.97473.9494

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
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.459      
2 Na 0.230      
3 Na 0.230      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.697 0.000 0.000
y 0.000 -18.697 0.000
z 0.000 0.000 17.369
Traceless
 xyz
x -18.033 0.000 0.000
y 0.000 -18.033 0.000
z 0.000 0.000 36.066
Polar
3z2-r272.132
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.746 0.000 0.000
y 0.000 6.746 0.000
z 0.000 0.000 7.278


<r2> (average value of r2) Å2
<r2> 89.957
(<r2>)1/2 9.485

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at HF/aug-cc-pVQZ
 hartrees
Energy at 0K-398.562837
Energy at 298.15K-398.564358
HF Energy-398.562837
Nuclear repulsion energy63.389973
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 HF/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 379 344 0.00      
2 A1 85 77 182.77      
3 B2 729 662 190.02      

Unscaled Zero Point Vibrational Energy (zpe) 596.2 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 541.7 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 HF/aug-cc-pVQZ
B
0.09406

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.000
Na2 0.000 1.974 -0.000
Na3 0.000 -1.974 -0.000

Atom - Atom Distances (Å)
  O1 Na2 Na3
O11.97431.9743
Na21.97433.9486
Na31.97433.9486

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 179.982
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.458      
2 Na 0.229      
3 Na 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.002 0.002
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.697 0.000 0.000
y 0.000 17.356 0.000
z 0.000 0.000 -18.697
Traceless
 xyz
x -18.026 0.000 0.000
y 0.000 36.052 0.000
z 0.000 0.000 -18.026
Polar
3z2-r2-36.052
x2-y2-36.052
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.744 0.000 0.000
y 0.000 7.274 0.000
z 0.000 0.000 6.744


<r2> (average value of r2) Å2
<r2> 89.924
(<r2>)1/2 9.483