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

using model chemistry: TPSSh/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at TPSSh/6-31G*
 hartrees
Energy at 0K-418.359827
Energy at 298.15K-418.364293
HF Energy-418.359827
Nuclear repulsion energy65.090161
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 TPSSh/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 A1 2477 2376 115.62      
2 A1 1300 1247 200.67      
3 A1 1167 1120 3.28      
4 E 2452 2352 177.79      
4 E 2452 2352 177.83      
5 E 1135 1089 48.41      
5 E 1135 1089 48.40      
6 E 864 829 28.10      
6 E 864 829 28.08      

Unscaled Zero Point Vibrational Energy (zpe) 6922.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 6641.0 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 TPSSh/6-31G*
ABC
3.55434 0.56439 0.56439

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.385
O2 0.000 0.000 -1.112
H3 0.000 1.252 1.043
H4 -1.085 -0.626 1.043
H5 1.085 -0.626 1.043

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.49661.41481.41481.4148
O21.49662.49222.49222.4922
H31.41482.49222.16932.1693
H41.41482.49222.16932.1693
H51.41482.49222.16932.1693

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 117.720 O2 P1 H4 117.720
O2 P1 H5 117.720 H3 P1 H4 100.105
H3 P1 H5 100.105 H4 P1 H5 100.105
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.612      
2 O -0.551      
3 H -0.020      
4 H -0.020      
5 H -0.020      


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 4.275 4.275
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.010 0.000 0.000
y 0.000 3.010 0.000
z 0.000 0.000 3.811


<r2> (average value of r2) Å2
<r2> 32.553
(<r2>)1/2 5.705