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

using model chemistry: PBEPBEultrafine/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBEultrafine/cc-pV(T+d)Z
 hartrees
Energy at 0K-418.181923
Energy at 298.15K-418.186341
HF Energy-418.181923
Nuclear repulsion energy65.125318
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 PBEPBEultrafine/cc-pV(T+d)Z
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 2321 2321 71.54      
2 A1 1236 1236 138.05      
3 A1 1110 1110 3.05      
4 E 2304 2304 98.34      
4 E 2304 2304 98.35      
5 E 1073 1073 22.77      
5 E 1073 1073 22.77      
6 E 808 808 20.16      
6 E 808 808 20.16      

Unscaled Zero Point Vibrational Energy (zpe) 6518.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6518.9 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 PBEPBEultrafine/cc-pV(T+d)Z
ABC
3.46575 0.56806 0.56806

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pV(T+d)Z

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 1.268 1.041
H4 -1.098 -0.634 1.041
H5 1.098 -0.634 1.041

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48891.42921.42921.4292
O21.48892.49412.49412.4941
H31.42922.49412.19692.1969
H41.42922.49412.19692.1969
H51.42922.49412.19692.1969

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 117.441 O2 P1 H4 117.441
O2 P1 H5 117.441 H3 P1 H4 100.454
H3 P1 H5 100.454 H4 P1 H5 100.454
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.501      
2 O -0.459      
3 H -0.014      
4 H -0.014      
5 H -0.014      


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 3.289 3.289
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.094 0.000 0.000
y 0.000 -19.094 0.000
z 0.000 0.000 -22.144
Traceless
 xyz
x 1.525 0.000 0.000
y 0.000 1.525 0.000
z 0.000 0.000 -3.050
Polar
3z2-r2-6.100
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 3.879 0.000 0.000
y 0.000 3.879 0.000
z 0.000 0.000 4.596


<r2> (average value of r2) Å2
<r2> 32.627
(<r2>)1/2 5.712