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All results from a given calculation for HPO (Hydrogen phosphorus oxide)

using model chemistry: HF/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-311+G(3df,2p)
 hartrees
Energy at 0K-416.198744
Energy at 298.15K-416.200225
Nuclear repulsion energy51.342043
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 HF/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 2309 2098 284.45      
2 A' 1391 1264 121.66      
3 A' 1099 999 43.34      

Unscaled Zero Point Vibrational Energy (zpe) 2399.4 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 2180.1 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 HF/6-311+G(3df,2p)
ABC
9.15543 0.73952 0.68425

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.058 -0.466 0.000
O2 0.058 0.978 0.000
H3 -1.333 -0.837 0.000

Atom - Atom Distances (Å)
  P1 O2 H3
P11.44401.4395
O21.44402.2869
H31.43952.2869

picture of Hydrogen phosphorus oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 P1 H3 104.955
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.544      
2 O -0.491      
3 H -0.054      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.551 -2.609 0.000 2.666
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.256 0.796 0.000
y 0.796 -21.220 0.000
z 0.000 0.000 -16.628
Traceless
 xyz
x -0.332 0.796 0.000
y 0.796 -3.277 0.000
z 0.000 0.000 3.610
Polar
3z2-r27.219
x2-y21.963
xy0.796
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.069 0.267 0.000
y 0.267 4.087 0.000
z 0.000 0.000 3.104


<r2> (average value of r2) Å2
<r2> 25.352
(<r2>)1/2 5.035