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

using model chemistry: HF/3-21G

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/3-21G
 hartrees
Energy at 0K-413.952478
Energy at 298.15K-413.953944
Nuclear repulsion energy48.411464
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/3-21G
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' 2205 1997 279.88      
2 A' 1234 1117 20.59      
3 A' 1071 970 46.92      

Unscaled Zero Point Vibrational Energy (zpe) 2254.7 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 2041.8 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/3-21G
ABC
8.90287 0.64973 0.60554

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.059 -0.501 0.000
O2 0.059 1.043 0.000
H3 -1.348 -0.838 0.000

Atom - Atom Distances (Å)
  P1 O2 H3
P11.54421.4469
O21.54422.3493
H31.44692.3493

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 103.476
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.799 0.324   0.306
2 O -0.644 -0.360   -0.350
3 H -0.154 0.036   0.044


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.459 -2.554 0.000 2.595
CHELPG -0.242 -2.726 0.000 2.737
AIM        
ESP -0.300 -2.672 0.000 2.688


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.749 0.589 0.000
y 0.589 -21.970 0.000
z 0.000 0.000 -16.941
Traceless
 xyz
x -0.294 0.589 0.000
y 0.589 -3.625 0.000
z 0.000 0.000 3.918
Polar
3z2-r27.837
x2-y22.220
xy0.589
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.967 0.598 0.000
y 0.598 3.739 0.000
z 0.000 0.000 1.844


<r2> (average value of r2) Å2
<r2> 27.283
(<r2>)1/2 5.223