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

using model chemistry: CCSD/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 CCSD/cc-pVQZ
 hartrees
Energy at 0K-417.857577
Energy at 298.15K-417.862061
HF Energy-417.405828
Nuclear repulsion energy65.957221
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 CCSD/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 2482 2359 63.79      
2 A1 1291 1227 182.21      
3 A1 1178 1120 2.96      
4 E 2467 2345 78.08      
4 E 2467 2345 78.09      
5 E 1154 1097 27.21      
5 E 1154 1097 27.21      
6 E 869 826 28.30      
6 E 869 826 28.30      

Unscaled Zero Point Vibrational Energy (zpe) 6964.6 cm-1
Scaled (by 0.9505) Zero Point Vibrational Energy (zpe) 6619.9 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 CCSD/cc-pVQZ
ABC
3.53606 0.58284 0.58284

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.380
O2 0.000 0.000 -1.093
H3 0.000 1.256 1.013
H4 -1.087 -0.628 1.013
H5 1.087 -0.628 1.013

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.47291.40621.40621.4062
O21.47292.45182.45182.4518
H31.40622.45182.17492.1749
H41.40622.45182.17492.1749
H51.40622.45182.17492.1749

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 116.752 O2 P1 H4 116.752
O2 P1 H5 116.752 H3 P1 H4 101.308
H3 P1 H5 101.308 H4 P1 H5 101.308
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability