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 PPO (Phosphorus oxide phosphide)

using model chemistry: M06-2X/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at M06-2X/3-21G
 hartrees
Energy at 0K-753.832249
Energy at 298.15K 
HF Energy-753.832249
Nuclear repulsion energy119.360176
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 M06-2X/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 Σ 1173 1125 73.75      
2 Σ 581 557 0.41      
3 Π 44i 43i 3.12      
3 Π 44i 43i 3.12      

Unscaled Zero Point Vibrational Energy (zpe) 832.9 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 798.5 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 M06-2X/3-21G
B
0.11878

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 1.518
P2 0.000 0.000 -0.449
O3 0.000 0.000 -2.005

Atom - Atom Distances (Å)
  P1 P2 O3
P11.96733.5232
P21.96731.5559
O33.52321.5559

picture of Phosphorus oxide phosphide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 P2 O3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P -0.010      
2 P 0.538      
3 O -0.528      


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 1.187 1.187
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.289 0.000 0.000
y 0.000 -31.289 0.000
z 0.000 0.000 -37.611
Traceless
 xyz
x 3.161 0.000 0.000
y 0.000 3.161 0.000
z 0.000 0.000 -6.322
Polar
3z2-r2-12.644
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 2.905 0.000 0.000
y 0.000 2.905 0.000
z 0.000 0.000 11.848


<r2> (average value of r2) Å2
<r2> 90.617
(<r2>)1/2 9.519