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All results from a given calculation for PO2 (Phosphorus dioxide)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-489.112319
Energy at 298.15K-489.113395
Nuclear repulsion energy92.848679
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 mPW1PW91/3-21G
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 965 921 0.04      
2 A1 368 351 18.01      
3 B2 988 944 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 1160.4 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 1107.7 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 mPW1PW91/3-21G
ABC
1.89325 0.27502 0.24014

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.388
O2 0.000 1.384 -0.364
O3 0.000 -1.384 -0.364

Atom - Atom Distances (Å)
  P1 O2 O3
P11.57541.5754
O21.57542.7685
O31.57542.7685

picture of Phosphorus dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 P1 O3 122.960
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.999      
2 O -0.500      
3 O -0.500      


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 1.516 1.516
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.722 0.000 0.000
y 0.000 -29.288 0.000
z 0.000 0.000 -22.016
Traceless
 xyz
x 4.930 0.000 0.000
y 0.000 -7.919 0.000
z 0.000 0.000 2.989
Polar
3z2-r25.978
x2-y28.566
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 50.034
(<r2>)1/2 7.073