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All results from a given calculation for H3PO (Phosphine oxide)

using model chemistry: PBE1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/6-311G*
 hartrees
Energy at 0K-418.168415
Energy at 298.15K-418.172890
HF Energy-418.168415
Nuclear repulsion energy65.430252
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 PBE1PBE/6-311G*
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 2426 2325 90.76      
2 A1 1296 1242 227.69      
3 A1 1177 1128 0.02      
4 E 2402 2302 140.79      
4 E 2402 2302 140.80      
5 E 1135 1088 38.68      
5 E 1135 1088 38.68      
6 E 867 831 37.80      
6 E 867 831 37.80      

Unscaled Zero Point Vibrational Energy (zpe) 6852.8 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 6568.4 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 PBE1PBE/6-311G*
ABC
3.52831 0.57253 0.57253

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.380
O2 0.000 0.000 -1.103
H3 0.000 1.257 1.041
H4 -1.089 -0.629 1.041
H5 1.089 -0.629 1.041

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48301.42001.42001.4200
O21.48302.48492.48492.4849
H31.42002.48492.17732.1773
H41.42002.48492.17732.1773
H51.42002.48492.17732.1773

picture of Phosphine oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 P1 H3 117.717 O2 P1 H4 117.717
O2 P1 H5 117.717 H3 P1 H4 100.108
H3 P1 H5 100.108 H4 P1 H5 100.108
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.506      
2 O -0.575      
3 H 0.023      
4 H 0.023      
5 H 0.023      


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 3.817 3.817
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.150 0.000 0.000
y 0.000 -19.150 0.000
z 0.000 0.000 -22.503
Traceless
 xyz
x 1.677 0.000 0.000
y 0.000 1.677 0.000
z 0.000 0.000 -3.353
Polar
3z2-r2-6.707
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 3.120 0.000 0.000
y 0.000 3.120 0.000
z 0.000 0.000 3.893


<r2> (average value of r2) Å2
<r2> 32.545
(<r2>)1/2 5.705