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

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-418.214822
Energy at 298.15K-418.219099
HF Energy-418.214822
Nuclear repulsion energy60.592985
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 BLYP/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 2148 2132 157.36      
2 A1 1133 1125 109.42      
3 A1 908 901 15.93      
4 E 2115 2099 226.13      
4 E 2115 2099 226.15      
5 E 1013 1006 35.61      
5 E 1013 1006 35.60      
6 E 721 716 6.96      
6 E 721 716 6.96      

Unscaled Zero Point Vibrational Energy (zpe) 5943.8 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 5898.6 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 BLYP/6-31G
ABC
3.30867 0.48039 0.48039

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.426
O2 0.000 0.000 -1.211
H3 0.000 1.298 1.098
H4 -1.124 -0.649 1.098
H5 1.124 -0.649 1.098

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.63661.46181.46181.4618
O21.63662.64862.64862.6486
H31.46182.64862.24842.2484
H41.46182.64862.24842.2484
H51.46182.64862.24842.2484

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 117.373 O2 P1 H4 117.373
O2 P1 H5 117.373 H3 P1 H4 100.539
H3 P1 H5 100.539 H4 P1 H5 100.539
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.645      
2 O -0.569      
3 H -0.025      
4 H -0.025      
5 H -0.025      


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 4.138 4.138
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.914 0.000 0.000
y 0.000 -19.914 0.000
z 0.000 0.000 -23.254
Traceless
 xyz
x 1.670 0.000 0.000
y 0.000 1.670 0.000
z 0.000 0.000 -3.340
Polar
3z2-r2-6.679
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 3.331 0.000 0.000
y 0.000 3.331 0.000
z 0.000 0.000 4.806


<r2> (average value of r2) Å2
<r2> 36.252
(<r2>)1/2 6.021