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

using model chemistry: CCSD/TZVP

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/TZVP
 hartrees
Energy at 0K-417.717817
Energy at 298.15K-417.722290
HF Energy-417.360121
Nuclear repulsion energy65.135445
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/TZVP
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 2487 2374 83.21      
2 A1 1267 1209 241.41      
3 A1 1172 1119 1.65      
4 E 2467 2354 118.31      
4 E 2467 2354 118.31      
5 E 1174 1121 40.33      
5 E 1174 1121 40.33      
6 E 845 806 35.69      
6 E 845 806 35.69      

Unscaled Zero Point Vibrational Energy (zpe) 6948.9 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 6632.0 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/TZVP
ABC
3.53563 0.56556 0.56556

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.386
O2 0.000 0.000 -1.111
H3 0.000 1.256 1.031
H4 -1.088 -0.628 1.031
H5 1.088 -0.628 1.031

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.49701.41141.41141.4114
O21.49702.48242.48242.4824
H31.41142.48242.17512.1751
H41.41142.48242.17512.1751
H51.41142.48242.17512.1751

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 117.163 O2 P1 H4 117.163
O2 P1 H5 117.163 H3 P1 H4 100.800
H3 P1 H5 100.800 H4 P1 H5 100.800
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability