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

using model chemistry: M06-2X/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at M06-2X/STO-3G
 hartrees
Energy at 0K-413.332079
Energy at 298.15K-413.336298
HF Energy-413.332079
Nuclear repulsion energy62.781777
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 M06-2X/STO-3G
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 2674 2674 87.32      
2 A1 1364 1364 153.08      
3 A1 985 985 9.83      
4 E 2640 2640 87.91      
4 E 2640 2640 87.25      
5 E 1281 1281 40.33      
5 E 1281 1281 40.18      
6 E 679 679 18.91      
6 E 679 679 18.91      

Unscaled Zero Point Vibrational Energy (zpe) 7111.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7111.9 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 M06-2X/STO-3G
ABC
3.66805 0.51397 0.51397

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.405
O2 0.000 0.000 -1.171
H3 0.000 1.233 1.100
H4 -1.068 -0.616 1.100
H5 1.068 -0.616 1.100

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.57581.41531.41531.4153
O21.57582.58392.58392.5839
H31.41532.58392.13542.1354
H41.41532.58392.13542.1354
H51.41532.58392.13542.1354

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 119.408 O2 P1 H4 119.408
O2 P1 H5 119.408 H3 P1 H4 97.952
H3 P1 H5 97.952 H4 P1 H5 97.952
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.694      
2 O -0.446      
3 H -0.083      
4 H -0.083      
5 H -0.083      


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 2.886 2.886
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.464 0.000 0.000
y 0.000 -17.464 0.000
z 0.000 0.000 -20.532
Traceless
 xyz
x 1.534 0.000 0.000
y 0.000 1.534 0.000
z 0.000 0.000 -3.068
Polar
3z2-r2-6.136
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 1.579 0.000 0.000
y 0.000 1.578 -0.000
z 0.000 -0.000 2.685


<r2> (average value of r2) Å2
<r2> 33.163
(<r2>)1/2 5.759