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

using model chemistry: PBEPBE/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-418.182355
Energy at 298.15K-418.186766
HF Energy-418.182355
Nuclear repulsion energy65.070390
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/Def2TZVPP
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 2324 2296 72.44      
2 A1 1228 1213 145.91      
3 A1 1108 1094 2.77      
4 E 2308 2280 94.05      
4 E 2308 2280 94.07      
5 E 1074 1061 21.08      
5 E 1074 1061 21.09      
6 E 806 796 19.46      
6 E 806 796 19.45      

Unscaled Zero Point Vibrational Energy (zpe) 6517.7 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 6438.9 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/Def2TZVPP
ABC
3.45873 0.56705 0.56705

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.382
O2 0.000 0.000 -1.103
H3 0.000 1.271 1.033
H4 -1.100 -0.635 1.033
H5 1.100 -0.635 1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48441.42781.42781.4278
O21.48442.48512.48512.4851
H31.42782.48512.20072.2007
H41.42782.48512.20072.2007
H51.42782.48512.20072.2007

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 117.139 O2 P1 H4 117.139
O2 P1 H5 117.139 H3 P1 H4 100.830
H3 P1 H5 100.830 H4 P1 H5 100.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.434      
2 O -0.474      
3 H 0.013      
4 H 0.013      
5 H 0.013      


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 3.400 3.400
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.106 0.000 0.000
y 0.000 -19.106 0.000
z 0.000 0.000 -22.338
Traceless
 xyz
x 1.616 0.000 0.000
y 0.000 1.616 0.000
z 0.000 0.000 -3.232
Polar
3z2-r2-6.464
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 3.891 0.000 0.000
y 0.000 3.891 0.000
z 0.000 0.000 4.749


<r2> (average value of r2) Å2
<r2> 32.699
(<r2>)1/2 5.718