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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-416.261210
Energy at 298.15K-416.265705
HF Energy-416.261210
Nuclear repulsion energy65.222452
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 wB97X-D/3-21G*
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 2434 2307 87.31      
2 A1 1350 1280 185.54      
3 A1 1213 1150 0.96      
4 E 2392 2267 146.52      
4 E 2392 2267 146.53      
5 E 1134 1074 50.48      
5 E 1134 1074 50.64      
6 E 898 851 38.14      
6 E 898 851 37.94      

Unscaled Zero Point Vibrational Energy (zpe) 6921.6 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 6560.3 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 wB97X-D/3-21G*
ABC
3.57966 0.56660 0.56660

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

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 -1.107
H3 0.000 1.249 1.048
H4 -1.081 -0.624 1.048
H5 1.081 -0.624 1.048

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48791.41571.41571.4157
O21.48792.49072.49072.4907
H31.41572.49072.16272.1627
H41.41572.49072.16272.1627
H51.41572.49072.16272.1627

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 118.118 O2 P1 H4 118.118
O2 P1 H5 118.118 H3 P1 H4 99.604
H3 P1 H5 99.604 H4 P1 H5 99.604
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.530      
2 O -0.478      
3 H -0.018      
4 H -0.018      
5 H -0.018      


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 3.328 3.328
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.006 0.000 0.000
y 0.000 -19.006 0.000
z 0.000 0.000 -22.045
Traceless
 xyz
x 1.519 0.000 0.000
y 0.000 1.519 0.000
z 0.000 0.000 -3.039
Polar
3z2-r2-6.078
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 2.772 0.000 0.000
y 0.000 2.773 -0.001
z 0.000 -0.001 3.402


<r2> (average value of r2) Å2
<r2> 32.515
(<r2>)1/2 5.702