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

using model chemistry: B3PW91/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-31+G**
 hartrees
Energy at 0K-418.290846
Energy at 298.15K-418.295294
HF Energy-418.290846
Nuclear repulsion energy65.062444
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 B3PW91/6-31+G**
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 2434 2337 99.84      
2 A1 1256 1206 233.65      
3 A1 1153 1107 0.01      
4 E 2417 2320 124.81      
4 E 2417 2320 124.82      
5 E 1121 1076 34.10      
5 E 1121 1076 34.10      
6 E 837 804 23.89      
6 E 837 804 23.90      

Unscaled Zero Point Vibrational Energy (zpe) 6795.5 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 6524.4 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 B3PW91/6-31+G**
ABC
3.49633 0.56540 0.56540

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.386
O2 0.000 0.000 -1.110
H3 0.000 1.263 1.033
H4 -1.094 -0.631 1.033
H5 1.094 -0.631 1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.49601.41891.41891.4189
O21.49602.48742.48742.4874
H31.41892.48742.18732.1873
H41.41892.48742.18732.1873
H51.41892.48742.18732.1873

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 117.130 O2 P1 H4 117.130
O2 P1 H5 117.130 H3 P1 H4 100.841
H3 P1 H5 100.841 H4 P1 H5 100.841
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.742      
2 O -0.665      
3 H -0.025      
4 H -0.025      
5 H -0.025      


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 4.034 4.034
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.134 0.000 0.000
y 0.000 -19.134 0.000
z 0.000 0.000 -22.838
Traceless
 xyz
x 1.852 0.000 0.000
y 0.000 1.852 0.000
z 0.000 0.000 -3.705
Polar
3z2-r2-7.410
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 3.449 0.000 0.000
y 0.000 3.449 0.000
z 0.000 0.000 4.571


<r2> (average value of r2) Å2
<r2> 32.799
(<r2>)1/2 5.727