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

using model chemistry: PBEPBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-413.094213
Energy at 298.15K-413.098383
HF Energy-413.094213
Nuclear repulsion energy62.101972
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/STO-3G
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 2441 2230 145.40      
2 A1 1298 1186 115.14      
3 A1 1033 944 1.20      
4 E 2342 2140 182.45      
4 E 2342 2140 182.46      
5 E 1174 1073 25.56      
5 E 1174 1073 25.56      
6 E 654 597 17.14      
6 E 654 597 17.14      

Unscaled Zero Point Vibrational Energy (zpe) 6556.7 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 5990.2 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/STO-3G
ABC
3.49569 0.50661 0.50661

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.403
O2 0.000 0.000 -1.178
H3 0.000 1.263 1.127
H4 -1.094 -0.631 1.127
H5 1.094 -0.631 1.127

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.58021.45591.45591.4559
O21.58022.62782.62782.6278
H31.45592.62782.18752.1875
H41.45592.62782.18752.1875
H51.45592.62782.18752.1875

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 119.834 O2 P1 H4 119.834
O2 P1 H5 119.834 H3 P1 H4 97.398
H3 P1 H5 97.398 H4 P1 H5 97.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.604      
2 O -0.382      
3 H -0.074      
4 H -0.074      
5 H -0.074      


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 2.290 2.290
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.557 0.000 0.000
y 0.000 -17.557 0.000
z 0.000 0.000 -20.100
Traceless
 xyz
x 1.271 0.000 0.000
y 0.000 1.271 0.000
z 0.000 0.000 -2.543
Polar
3z2-r2-5.086
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 1.654 0.000 0.000
y 0.000 1.654 0.000
z 0.000 0.000 2.824


<r2> (average value of r2) Å2
<r2> 33.614
(<r2>)1/2 5.798