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: PBEPBEultrafine/aug-cc-pVDZ

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 PBEPBEultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-757.528852
Energy at 298.15K-757.529920
HF Energy-757.528852
Nuclear repulsion energy121.739577
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 PBEPBEultrafine/aug-cc-pVDZ
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 1196 1189 122.24      
2 Σ 640 636 2.28      
3 Π 204 203 0.92      
3 Π 204 203 0.92      

Unscaled Zero Point Vibrational Energy (zpe) 1121.8 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 1114.9 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 PBEPBEultrafine/aug-cc-pVDZ
B
0.12357

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 1.488
P2 0.000 0.000 -0.440
O3 0.000 0.000 -1.966

Atom - Atom Distances (Å)
  P1 P2 O3
P11.92843.4544
P21.92841.5259
O33.45441.5259

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 PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.203      
2 P 0.253      
3 O -0.456      


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 1.778 1.778
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.022 0.000 0.000
y 0.000 -31.022 0.000
z 0.000 0.000 -32.972
Traceless
 xyz
x 0.975 0.000 0.000
y 0.000 0.975 0.000
z 0.000 0.000 -1.950
Polar
3z2-r2-3.900
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 6.072 0.000 0.000
y 0.000 6.072 0.000
z 0.000 0.000 12.637


<r2> (average value of r2) Å2
<r2> 86.836
(<r2>)1/2 9.319