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

using model chemistry: mPW1PW91/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-418.384127
Energy at 298.15K-418.388601
HF Energy-418.384127
Nuclear repulsion energy65.422935
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 mPW1PW91/6-311G**
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 2432 2327 88.91      
2 A1 1282 1227 211.97      
3 A1 1174 1123 0.02      
4 E 2409 2304 130.03      
4 E 2409 2304 130.03      
5 E 1124 1076 37.35      
5 E 1124 1076 37.35      
6 E 864 827 36.44      
6 E 864 827 36.44      

Unscaled Zero Point Vibrational Energy (zpe) 6841.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 6544.8 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 mPW1PW91/6-311G**
ABC
3.52456 0.57242 0.57242

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.381
O2 0.000 0.000 -1.103
H3 0.000 1.258 1.038
H4 -1.089 -0.629 1.038
H5 1.089 -0.629 1.038

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48361.41921.41921.4192
O21.48362.48322.48322.4832
H31.41922.48322.17852.1785
H41.41922.48322.17852.1785
H51.41922.48322.17852.1785

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 117.597 O2 P1 H4 117.597
O2 P1 H5 117.597 H3 P1 H4 100.259
H3 P1 H5 100.259 H4 P1 H5 100.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.718      
2 O -0.583      
3 H -0.045      
4 H -0.045      
5 H -0.045      


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 3.846 3.846
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.032 0.000 0.000
y 0.000 -19.032 0.000
z 0.000 0.000 -22.492
Traceless
 xyz
x 1.730 0.000 0.000
y 0.000 1.730 0.000
z 0.000 0.000 -3.459
Polar
3z2-r2-6.918
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 3.213 0.000 0.000
y 0.000 3.214 0.000
z 0.000 0.000 4.005


<r2> (average value of r2) Å2
<r2> 32.493
(<r2>)1/2 5.700