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

using model chemistry: CCSD(T)/cc-pVDZ

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(T)/cc-pVDZ
 hartrees
Energy at 0K-417.673380
Energy at 298.15K-417.677836
HF Energy-417.320441
Nuclear repulsion energy64.433138
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(T)/cc-pVDZ
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 2443 2391        
2 A1 1258 1231        
3 A1 1136 1112        
4 E 2422 2370        
4 E 2421 2370        
5 E 1141 1116        
5 E 1140 1116        
6 E 838 820        
6 E 838 820        

Unscaled Zero Point Vibrational Energy (zpe) 6817.8 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 6673.3 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 CCSD(T)/cc-pVDZ
ABC
3.50624 0.55237 0.55237

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.388
O2 0.000 0.000 -1.124
H3 0.000 1.261 1.056
H4 -1.092 -0.631 1.056
H5 1.092 -0.631 1.056

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.51281.42681.42681.4268
O21.51282.51882.51882.5188
H31.42682.51882.18422.1842
H41.42682.51882.18422.1842
H51.42682.51882.18422.1842

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 117.895 O2 P1 H4 117.895
O2 P1 H5 117.895 H3 P1 H4 99.885
H3 P1 H5 99.885 H4 P1 H5 99.885
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability