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

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-417.055072
Energy at 298.15K-417.056524
Nuclear repulsion energy49.613228
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 B3PW91/6-31G*
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' 2144 2052 354.69      
2 A' 1217 1165 48.45      
3 A' 1017 973 40.46      

Unscaled Zero Point Vibrational Energy (zpe) 2189.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 2094.8 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 B3PW91/6-31G*
ABC
8.84244 0.68765 0.63803

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.059 -0.483 0.000
O2 0.059 1.014 0.000
H3 -1.356 -0.872 0.000

Atom - Atom Distances (Å)
  P1 O2 H3
P11.49731.4679
O21.49732.3584
H31.46792.3584

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 105.377
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.534     0.277
2 O -0.447     -0.303
3 H -0.087     0.026


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.321 -2.155 0.000 2.179
CHELPG        
AIM        
ESP -0.178 -2.230 0.000 2.237


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.135 0.497 0.000
y 0.497 -20.154 0.000
z 0.000 0.000 -16.548
Traceless
 xyz
x -0.784 0.497 0.000
y 0.497 -2.312 0.000
z 0.000 0.000 3.096
Polar
3z2-r26.193
x2-y21.019
xy0.497
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 26.035
(<r2>)1/2 5.102