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

using model chemistry: B3LYP/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 B3LYP/6-311G*
 hartrees
Energy at 0K-418.406414
Energy at 298.15K-418.410885
HF Energy-418.406414
Nuclear repulsion energy65.287523
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 B3LYP/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 2399 2318 98.99      
2 A1 1289 1245 227.44      
3 A1 1166 1126 2.18      
4 E 2373 2293 156.22      
4 E 2373 2293 156.23      
5 E 1135 1097 41.60      
5 E 1135 1097 41.59      
6 E 864 835 37.67      
6 E 864 835 37.67      

Unscaled Zero Point Vibrational Energy (zpe) 6798.9 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 6569.8 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 B3LYP/6-311G*
ABC
3.53054 0.56941 0.56941

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.382
O2 0.000 0.000 -1.106
H3 0.000 1.257 1.042
H4 -1.088 -0.628 1.042
H5 1.088 -0.628 1.042

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48791.41951.41951.4195
O21.48792.48862.48862.4886
H31.41952.48862.17662.1766
H41.41952.48862.17662.1766
H51.41952.48862.17662.1766

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 117.715 O2 P1 H4 117.715
O2 P1 H5 117.715 H3 P1 H4 100.111
H3 P1 H5 100.111 H4 P1 H5 100.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.556      
2 O -0.574      
3 H 0.006      
4 H 0.006      
5 H 0.006      


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 3.793 3.793
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.328 0.000 0.000
y 0.000 -19.328 0.000
z 0.000 0.000 -22.677
Traceless
 xyz
x 1.674 0.000 0.000
y 0.000 1.674 0.000
z 0.000 0.000 -3.349
Polar
3z2-r2-6.698
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 3.159 0.000 0.000
y 0.000 3.159 0.000
z 0.000 0.000 3.925


<r2> (average value of r2) Å2
<r2> 32.738
(<r2>)1/2 5.722