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

using model chemistry: MP2=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 MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-417.852780
Energy at 298.15K-417.857263
HF Energy-417.388405
Nuclear repulsion energy65.631241
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 MP2=FULL/cc-pVTZ
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 2505 2378 72.54      
2 A1 1289 1224 171.31      
3 A1 1177 1117 1.45      
4 E 2492 2366 98.94      
4 E 2492 2366 98.94      
5 E 1154 1096 30.43      
5 E 1154 1096 30.43      
6 E 863 819 28.35      
6 E 863 819 28.35      

Unscaled Zero Point Vibrational Energy (zpe) 6995.0 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 6641.0 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 MP2=FULL/cc-pVTZ
ABC
3.58114 0.57457 0.57457

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.383
O2 0.000 0.000 -1.102
H3 0.000 1.248 1.025
H4 -1.081 -0.624 1.025
H5 1.081 -0.624 1.025

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48451.40331.40331.4033
O21.48452.46562.46562.4656
H31.40332.46562.16122.1612
H41.40332.46562.16122.1612
H51.40332.46562.16122.1612

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 117.231 O2 P1 H4 117.231
O2 P1 H5 117.231 H3 P1 H4 100.716
H3 P1 H5 100.716 H4 P1 H5 100.716
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability