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

using model chemistry: HF/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 HF/6-31G**
 hartrees
Energy at 0K-417.313201
Energy at 298.15K-417.317752
HF Energy-417.313201
Nuclear repulsion energy66.356508
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/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 2647 2389 92.58      
2 A1 1389 1254 307.97      
3 A1 1282 1157 6.15      
4 E 2618 2363 165.50      
4 E 2618 2363 165.50      
5 E 1238 1117 72.70      
5 E 1238 1117 72.70      
6 E 956 863 59.19      
6 E 956 863 59.19      

Unscaled Zero Point Vibrational Energy (zpe) 7469.9 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 6742.3 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/6-31G**
ABC
3.59819 0.58933 0.58933

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.378
O2 0.000 0.000 -1.087
H3 0.000 1.245 1.009
H4 -1.078 -0.622 1.009
H5 1.078 -0.622 1.009

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.46491.39581.39581.3958
O21.46492.43802.43802.4380
H31.39582.43802.15612.1561
H41.39582.43802.15612.1561
H51.39582.43802.15612.1561

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 116.894 O2 P1 H4 116.894
O2 P1 H5 116.894 H3 P1 H4 101.133
H3 P1 H5 101.133 H4 P1 H5 101.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 1.051      
2 O -0.721      
3 H -0.110      
4 H -0.110      
5 H -0.110      


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 4.189 4.189
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.865 0.000 0.000
y 0.000 -18.865 0.000
z 0.000 0.000 -22.734
Traceless
 xyz
x 1.935 0.000 0.000
y 0.000 1.935 0.000
z 0.000 0.000 -3.869
Polar
3z2-r2-7.739
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 2.799 0.000 0.000
y 0.000 2.799 0.000
z 0.000 0.000 3.273


<r2> (average value of r2) Å2
<r2> 31.886
(<r2>)1/2 5.647