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

using model chemistry: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-418.243607
Energy at 298.15K-418.247922
HF Energy-418.243607
Nuclear repulsion energy61.149384
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/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2269 2182 135.98      
2 A1 1166 1121 120.95      
3 A1 925 890 18.45      
4 E 2245 2160 195.29      
4 E 2245 2160 195.30      
5 E 1055 1015 39.52      
5 E 1055 1015 39.51      
6 E 741 713 9.27      
6 E 741 713 9.26      

Unscaled Zero Point Vibrational Energy (zpe) 6220.0 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 5983.7 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/6-31G
ABC
3.37348 0.48874 0.48874

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.424
O2 0.000 0.000 -1.200
H3 0.000 1.286 1.081
H4 -1.113 -0.643 1.081
H5 1.113 -0.643 1.081

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.62451.44351.44351.4435
O21.62452.61832.61832.6183
H31.44352.61832.22672.2267
H41.44352.61832.22672.2267
H51.44352.61832.22672.2267

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 117.051 O2 P1 H4 117.051
O2 P1 H5 117.051 H3 P1 H4 100.939
H3 P1 H5 100.939 H4 P1 H5 100.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.722      
2 O -0.631      
3 H -0.030      
4 H -0.030      
5 H -0.030      


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 4.546 4.546
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.722 0.000 0.000
y 0.000 -19.722 0.000
z 0.000 0.000 -23.530
Traceless
 xyz
x 1.904 0.000 0.000
y 0.000 1.904 0.000
z 0.000 0.000 -3.809
Polar
3z2-r2-7.617
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 3.199 0.000 0.000
y 0.000 3.199 0.000
z 0.000 0.000 4.605


<r2> (average value of r2) Å2
<r2> 35.798
(<r2>)1/2 5.983