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

using model chemistry: MP4=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP4=FULL/cc-pVTZ
 hartrees
Energy at 0K-417.890520
Energy at 298.15K-417.894985
HF Energy-417.387962
Nuclear repulsion energy65.428153
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 MP4=FULL/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2457 2366        
2 A1 1266 1219        
3 A1 1152 1109        
4 E 2444 2353        
4 E 2444 2353        
5 E 1135 1093        
5 E 1135 1093        
6 E 848 816        
6 E 847 816        

Unscaled Zero Point Vibrational Energy (zpe) 6863.9 cm-1
Scaled (by 0.9629) Zero Point Vibrational Energy (zpe) 6609.2 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 MP4=FULL/cc-pVTZ
ABC
3.56258 0.57097 0.57097

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.384
O2 0.000 0.000 -1.105
H3 0.000 1.251 1.030
H4 -1.083 -0.626 1.030
H5 1.083 -0.626 1.030

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48881.40811.40811.4081
O21.48882.47472.47472.4747
H31.40812.47472.16682.1668
H41.40812.47472.16682.1668
H51.40812.47472.16682.1668

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 117.324 O2 P1 H4 117.324
O2 P1 H5 117.324 H3 P1 H4 100.599
H3 P1 H5 100.599 H4 P1 H5 100.599
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability