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

using model chemistry: B3LYPultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-418.443140
Energy at 298.15K-418.447591
HF Energy-418.443140
Nuclear repulsion energy65.307420
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 B3LYPultrafine/aug-cc-pVTZ
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 2403 2324 77.21      
2 A1 1239 1199 176.85      
3 A1 1141 1104 0.16      
4 E 2389 2312 80.55      
4 E 2389 2312 80.56      
5 E 1121 1084 22.04      
5 E 1121 1084 22.04      
6 E 834 806 22.24      
6 E 834 806 22.25      

Unscaled Zero Point Vibrational Energy (zpe) 6734.7 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 6515.8 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 B3LYPultrafine/aug-cc-pVTZ
ABC
3.48516 0.57075 0.57075

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.385
O2 0.000 0.000 -1.105
H3 0.000 1.265 1.022
H4 -1.095 -0.632 1.022
H5 1.095 -0.632 1.022

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48931.41651.41651.4165
O21.48932.47462.47462.4746
H31.41652.47462.19082.1908
H41.41652.47462.19082.1908
H51.41652.47462.19082.1908

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 116.756 O2 P1 H4 116.756
O2 P1 H5 116.756 H3 P1 H4 101.303
H3 P1 H5 101.303 H4 P1 H5 101.303
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.713      
2 O -0.793      
3 H 0.026      
4 H 0.026      
5 H 0.026      


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 3.756 3.756
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.120 0.000 0.000
y 0.000 -19.120 0.000
z 0.000 0.000 -23.012
Traceless
 xyz
x 1.946 0.000 0.000
y 0.000 1.946 0.000
z 0.000 0.000 -3.892
Polar
3z2-r2-7.784
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 4.259 0.000 0.000
y 0.000 4.259 0.000
z 0.000 0.000 5.086


<r2> (average value of r2) Å2
<r2> 32.668
(<r2>)1/2 5.716