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

using model chemistry: HF/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-417.407458
Energy at 298.15K-417.412001
HF Energy-417.407458
Nuclear repulsion energy66.779556
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/aug-cc-pVQZ
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 2591 2354 66.95      
2 A1 1361 1236 252.14      
3 A1 1259 1144 1.80      
4 E 2568 2333 87.15      
4 E 2568 2333 87.15      
5 E 1232 1119 33.20      
5 E 1232 1119 33.20      
6 E 935 850 42.84      
6 E 935 850 42.84      

Unscaled Zero Point Vibrational Energy (zpe) 7340.5 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 6668.9 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 HF/aug-cc-pVQZ
ABC
3.55147 0.59978 0.59978

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.375
O2 0.000 0.000 -1.076
H3 0.000 1.253 0.993
H4 -1.085 -0.626 0.993
H5 1.085 -0.626 0.993

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.45151.39681.39681.3968
O21.45152.41872.41872.4187
H31.39682.41872.17022.1702
H41.39682.41872.17022.1702
H51.39682.41872.17022.1702

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 116.229 O2 P1 H4 116.229
O2 P1 H5 116.229 H3 P1 H4 101.947
H3 P1 H5 101.947 H4 P1 H5 101.947
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 1.230      
2 O -1.047      
3 H -0.061      
4 H -0.061      
5 H -0.061      


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 4.088 4.088
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.751 0.000 0.000
y 0.000 -18.751 0.000
z 0.000 0.000 -23.037
Traceless
 xyz
x 2.143 0.000 0.000
y 0.000 2.143 0.000
z 0.000 0.000 -4.285
Polar
3z2-r2-8.570
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 3.767 0.000 0.000
y 0.000 3.767 0.000
z 0.000 0.000 4.196


<r2> (average value of r2) Å2
<r2> 31.648
(<r2>)1/2 5.626