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

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-417.617408
Energy at 298.15K-417.621900
HF Energy-417.305572
Nuclear repulsion energy65.421963
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 MP3=FULL/6-31G*
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 2533 2377 94.27      
2 A1 1328 1246 250.58      
3 A1 1211 1137 0.68      
4 E 2517 2361 148.06      
4 E 2517 2361 148.06      
5 E 1149 1078 55.48      
5 E 1149 1078 55.48      
6 E 894 839 38.25      
6 E 894 839 38.25      

Unscaled Zero Point Vibrational Energy (zpe) 7096.3 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 6658.5 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 MP3=FULL/6-31G*
ABC
3.54070 0.57162 0.57162

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

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 -1.104
H3 0.000 1.255 1.031
H4 -1.087 -0.627 1.031
H5 1.087 -0.627 1.031

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48701.41251.41251.4125
O21.48702.47692.47692.4769
H31.41252.47692.17352.1735
H41.41252.47692.17352.1735
H51.41252.47692.17352.1735

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 117.329 O2 P1 H4 117.329
O2 P1 H5 117.329 H3 P1 H4 100.594
H3 P1 H5 100.594 H4 P1 H5 100.594
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability