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

using model chemistry: CCD/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 CCD/6-31G
 hartrees
Energy at 0K-417.371844
Energy at 298.15K-417.376160
HF Energy-417.154897
Nuclear repulsion energy60.926813
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 CCD/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 2290 2198 104.51      
2 A1 1176 1128 146.92      
3 A1 918 881 26.79      
4 E 2277 2184 152.67      
4 E 2277 2184 152.67      
5 E 1054 1011 46.93      
5 E 1054 1011 46.93      
6 E 743 713 13.53      
6 E 743 713 13.53      

Unscaled Zero Point Vibrational Energy (zpe) 6266.1 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 6012.3 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 CCD/6-31G
ABC
3.36006 0.48435 0.48435

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.428
O2 0.000 0.000 -1.206
H3 0.000 1.288 1.076
H4 -1.116 -0.644 1.076
H5 1.116 -0.644 1.076

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.63441.44181.44181.4418
O21.63442.62052.62052.6205
H31.44182.62052.23122.2312
H41.44182.62052.23122.2312
H51.44182.62052.23122.2312

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 116.689 O2 P1 H4 116.689
O2 P1 H5 116.689 H3 P1 H4 101.385
H3 P1 H5 101.385 H4 P1 H5 101.385
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability