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

using model chemistry: PBE1PBE/6-31G**

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/6-31G**
 hartrees
Energy at 0K-418.124168
Energy at 298.15K-418.128639
HF Energy-418.124168
Nuclear repulsion energy65.254097
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/6-31G**
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 2476 2360 105.22      
2 A1 1301 1240 201.77      
3 A1 1180 1125 0.08      
4 E 2454 2339 159.58      
4 E 2454 2339 159.59      
5 E 1123 1070 44.81      
5 E 1123 1070 44.81      
6 E 867 827 30.81      
6 E 867 827 30.80      

Unscaled Zero Point Vibrational Energy (zpe) 6922.5 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 6597.9 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/6-31G**
ABC
3.53369 0.56856 0.56856

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

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 -1.107
H3 0.000 1.256 1.041
H4 -1.088 -0.628 1.041
H5 1.088 -0.628 1.041

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48951.41841.41841.4184
O21.48952.48862.48862.4886
H31.41842.48862.17572.1757
H41.41842.48862.17572.1757
H51.41842.48862.17572.1757

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 117.675 O2 P1 H4 117.675
O2 P1 H5 117.675 H3 P1 H4 100.162
H3 P1 H5 100.162 H4 P1 H5 100.162
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.588      
2 O -0.559      
3 H -0.009      
4 H -0.009      
5 H -0.009      


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 3.639 3.639
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.954 0.000 0.000
y 0.000 -18.954 0.000
z 0.000 0.000 -21.961
Traceless
 xyz
x 1.504 0.000 0.000
y 0.000 1.504 0.000
z 0.000 0.000 -3.007
Polar
3z2-r2-6.015
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 3.003 0.000 0.000
y 0.000 3.003 0.000
z 0.000 0.000 3.749


<r2> (average value of r2) Å2
<r2> 32.449
(<r2>)1/2 5.696