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

using model chemistry: HF/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-416.148028
Energy at 298.15K-416.149509
Nuclear repulsion energy51.211849
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 2322 2102 294.05      
2 A' 1394 1262 89.36      
3 A' 1112 1007 49.24      

Unscaled Zero Point Vibrational Energy (zpe) 2413.9 cm-1
Scaled (by 0.9055) Zero Point Vibrational Energy (zpe) 2185.7 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/6-31G(2df,p)
ABC
9.16275 0.73524 0.68062

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.058 -0.467 0.000
O2 0.058 0.981 0.000
H3 -1.333 -0.846 0.000

Atom - Atom Distances (Å)
  P1 O2 H3
P11.44781.4413
O21.44782.2958
H31.44132.2958

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 105.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.374      
2 O -0.352      
3 H -0.022      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.469 -2.474 0.000 2.518
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.988 0.727 0.000
y 0.727 -20.489 0.000
z 0.000 0.000 -16.444
Traceless
 xyz
x -0.521 0.727 0.000
y 0.727 -2.773 0.000
z 0.000 0.000 3.294
Polar
3z2-r26.589
x2-y21.501
xy0.727
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.440 0.399 0.000
y 0.399 3.484 0.000
z 0.000 0.000 2.630


<r2> (average value of r2) Å2
<r2> 25.178
(<r2>)1/2 5.018