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

using model chemistry: TPSSh/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-418.371628
Energy at 298.15K-418.376081
HF Energy-418.371628
Nuclear repulsion energy64.993815
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/6-31+G**
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 2457 2365 104.36      
2 A1 1259 1212 236.60      
3 A1 1151 1108 3.46      
4 E 2437 2346 133.95      
4 E 2437 2346 133.98      
5 E 1138 1095 37.14      
5 E 1138 1095 37.13      
6 E 838 807 22.68      
6 E 838 807 22.66      

Unscaled Zero Point Vibrational Energy (zpe) 6846.4 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 6589.7 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/6-31+G**
ABC
3.52142 0.56306 0.56306

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.387
O2 0.000 0.000 -1.113
H3 0.000 1.258 1.033
H4 -1.090 -0.629 1.033
H5 1.090 -0.629 1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.50041.41431.41431.4143
O21.50042.48772.48772.4877
H31.41432.48772.17942.1794
H41.41432.48772.17942.1795
H51.41432.48772.17942.1795

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 117.160 O2 P1 H4 117.160
O2 P1 H5 117.160 H3 P1 H4 100.803
H3 P1 H5 100.803 H4 P1 H5 100.803
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.749      
2 O -0.649      
3 H -0.033      
4 H -0.033      
5 H -0.033      


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 4.100 4.100
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 3.441 0.000 0.000
y 0.000 3.441 0.000
z 0.000 0.000 4.636


<r2> (average value of r2) Å2
<r2> 32.862
(<r2>)1/2 5.733