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

using model chemistry: PBE1PBE/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 PBE1PBE/6-31+G**
 hartrees
Energy at 0K-418.136050
Energy at 298.15K-418.140502
HF Energy-418.136050
Nuclear repulsion energy65.146955
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/6-31+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 2452 2342 93.73      
2 A1 1261 1205 235.79      
3 A1 1159 1107 0.23      
4 E 2435 2326 117.35      
4 E 2435 2326 117.35      
5 E 1124 1073 33.48      
5 E 1124 1073 33.48      
6 E 841 803 24.69      
6 E 841 803 24.69      

Unscaled Zero Point Vibrational Energy (zpe) 6835.1 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 6529.5 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/6-31+G**
ABC
3.49883 0.56710 0.56710

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.385
O2 0.000 0.000 -1.109
H3 0.000 1.262 1.031
H4 -1.093 -0.631 1.031
H5 1.093 -0.631 1.031

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.49351.41821.41821.4182
O21.49352.48442.48442.4844
H31.41822.48442.18652.1865
H41.41822.48442.18652.1865
H51.41822.48442.18652.1865

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 117.110 O2 P1 H4 117.110
O2 P1 H5 117.110 H3 P1 H4 100.866
H3 P1 H5 100.866 H4 P1 H5 100.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.732      
2 O -0.670      
3 H -0.021      
4 H -0.021      
5 H -0.021      


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 4.061 4.061
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.164 0.000 0.000
y 0.000 -19.164 0.000
z 0.000 0.000 -22.879
Traceless
 xyz
x 1.857 0.000 0.000
y 0.000 1.857 0.000
z 0.000 0.000 -3.715
Polar
3z2-r2-7.430
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 3.441 0.000 0.000
y 0.000 3.441 0.000
z 0.000 0.000 4.533


<r2> (average value of r2) Å2
<r2> 32.768
(<r2>)1/2 5.724