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

using model chemistry: CCD/6-311G**

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/6-311G**
 hartrees
Energy at 0K-417.705879
Energy at 298.15K-417.710390
HF Energy-417.355848
Nuclear repulsion energy65.810768
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/6-311G**
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 2519 2406 92.09      
2 A1 1328 1268 263.32      
3 A1 1218 1163 1.47      
4 E 2493 2381 139.45      
4 E 2493 2381 139.45      
5 E 1184 1131 53.22      
5 E 1184 1131 53.22      
6 E 896 856 49.92      
6 E 896 856 49.92      

Unscaled Zero Point Vibrational Energy (zpe) 7105.4 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 6786.3 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/6-311G**
ABC
3.58130 0.57861 0.57861

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

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 -1.097
H3 0.000 1.248 1.029
H4 -1.081 -0.624 1.029
H5 1.081 -0.624 1.029

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.47701.40651.40651.4065
O21.47702.46522.46522.4652
H31.40652.46522.16122.1612
H41.40652.46522.16122.1612
H51.40652.46522.16122.1612

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 117.484 O2 P1 H4 117.484
O2 P1 H5 117.484 H3 P1 H4 100.401
H3 P1 H5 100.401 H4 P1 H5 100.401
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability