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

using model chemistry: B1B95/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-418.389312
Energy at 298.15K-418.393789
HF Energy-418.389312
Nuclear repulsion energy65.604073
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 B1B95/6-311G*
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 2434 2334 90.51      
2 A1 1302 1249 231.04      
3 A1 1182 1133 0.04      
4 E 2411 2311 142.45      
4 E 2411 2311 142.48      
5 E 1140 1092 39.96      
5 E 1140 1092 39.96      
6 E 868 832 38.58      
6 E 868 832 38.60      

Unscaled Zero Point Vibrational Energy (zpe) 6877.8 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 6593.0 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 B1B95/6-311G*
ABC
3.55362 0.57535 0.57535

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.379
O2 0.000 0.000 -1.100
H3 0.000 1.253 1.038
H4 -1.085 -0.626 1.038
H5 1.085 -0.626 1.038

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.47961.41511.41511.4151
O21.47962.47782.47782.4778
H31.41512.47782.16962.1696
H41.41512.47782.16962.1696
H51.41512.47782.16962.1696

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 117.725 O2 P1 H4 117.725
O2 P1 H5 117.725 H3 P1 H4 100.098
H3 P1 H5 100.098 H4 P1 H5 100.098
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.519      
2 O -0.573      
3 H 0.018      
4 H 0.018      
5 H 0.018      


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 3.785 3.785
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.088 0.000 0.000
y 0.000 -19.088 0.000
z 0.000 0.000 -22.444
Traceless
 xyz
x 1.678 0.000 0.000
y 0.000 1.678 0.000
z 0.000 0.000 -3.356
Polar
3z2-r2-6.711
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 3.093 0.000 0.000
y 0.000 3.094 0.000
z 0.000 0.000 3.864


<r2> (average value of r2) Å2
<r2> 32.401
(<r2>)1/2 5.692