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: mPW1PW91/aug-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 mPW1PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-399.786449
Energy at 298.15K-399.787541
HF Energy-399.786449
Nuclear repulsion energy62.960730
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 mPW1PW91/aug-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 357 342 0.00      
2 Σu 684 655 97.38      
3 Πu 63 60 118.83      
3 Πu 63 60 118.83      

Unscaled Zero Point Vibrational Energy (zpe) 583.2 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 558.7 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 mPW1PW91/aug-cc-pVTZ
B
0.09279

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-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 1.988
Na3 0.000 0.000 -1.988

Atom - Atom Distances (Å)
  O1 Na2 Na3
O11.98781.9878
Na21.98783.9755
Na31.98783.9755

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 mPW1PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -1.185      
2 Na 0.592      
3 Na 0.592      


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 -20.065 0.000 0.000
y 0.000 -20.065 0.000
z 0.000 0.000 13.512
Traceless
 xyz
x -16.789 0.000 0.000
y 0.000 -16.789 0.000
z 0.000 0.000 33.577
Polar
3z2-r267.155
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 11.284 0.000 0.000
y 0.000 11.284 0.000
z 0.000 0.000 19.733


<r2> (average value of r2) Å2
<r2> 92.467
(<r2>)1/2 9.616

Conformer 2 (C2V)

Jump to S1C1
Energy calculated at mPW1PW91/aug-cc-pVTZ
 hartrees
Energy at 0K-399.786449
Energy at 298.15K-399.787889
HF Energy-399.786449
Nuclear repulsion energy62.961253
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 mPW1PW91/aug-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 357 342 0.00      
2 A1 63 60 118.83      
3 B2 684 655 97.38      

Unscaled Zero Point Vibrational Energy (zpe) 551.8 cm-1
Scaled (by 0.9581) Zero Point Vibrational Energy (zpe) 528.7 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 mPW1PW91/aug-cc-pVTZ
B
0.09279

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 -0.000
Na2 0.000 1.988 0.000
Na3 0.000 -1.988 0.000

Atom - Atom Distances (Å)
  O1 Na2 Na3
O11.98771.9877
Na21.98773.9755
Na31.98773.9755

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 179.994
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -1.185      
2 Na 0.592      
3 Na 0.592      


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 0.001 0.001
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.065 0.000 0.000
y 0.000 13.512 0.000
z 0.000 0.000 -20.065
Traceless
 xyz
x -16.788 0.000 0.000
y 0.000 33.577 0.000
z 0.000 0.000 -16.788
Polar
3z2-r2-33.577
x2-y2-33.577
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.284 0.000 0.000
y 0.000 19.733 0.000
z 0.000 0.000 11.284


<r2> (average value of r2) Å2
<r2> 92.466
(<r2>)1/2 9.616