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

using model chemistry: PBEPBE/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-418.128798
Energy at 298.15K-418.133161
HF Energy-418.128798
Nuclear repulsion energy63.573090
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 PBEPBE/aug-cc-pVDZ
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 2302 2288 88.58      
2 A1 1147 1140 144.24      
3 A1 1057 1050 0.05      
4 E 2293 2279 82.26      
4 E 2293 2279 82.28      
5 E 1045 1038 16.25      
5 E 1045 1038 16.25      
6 E 765 760 13.07      
6 E 765 760 13.07      

Unscaled Zero Point Vibrational Energy (zpe) 6354.7 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 6315.9 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 PBEPBE/aug-cc-pVDZ
ABC
3.35872 0.53892 0.53892

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.397
O2 0.000 0.000 -1.138
H3 0.000 1.288 1.051
H4 -1.116 -0.644 1.051
H5 1.116 -0.644 1.051

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.53441.44531.44531.4453
O21.53442.54032.54032.5403
H31.44532.54032.23162.2316
H41.44532.54032.23162.2316
H51.44532.54032.23162.2316

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 116.945 O2 P1 H4 116.945
O2 P1 H5 116.945 H3 P1 H4 101.070
H3 P1 H5 101.070 H4 P1 H5 101.070
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P -0.238      
2 O -0.665      
3 H 0.301      
4 H 0.301      
5 H 0.301      


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 3.658 3.658
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.352 0.000 0.000
y 0.000 -19.352 0.000
z 0.000 0.000 -22.969
Traceless
 xyz
x 1.808 0.000 0.000
y 0.000 1.808 0.000
z 0.000 0.000 -3.617
Polar
3z2-r2-7.233
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 4.514 0.000 0.000
y 0.000 4.514 0.000
z 0.000 0.000 5.619


<r2> (average value of r2) Å2
<r2> 33.853
(<r2>)1/2 5.818