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

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

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/6-31+G**
 hartrees
Energy at 0K-417.658271
Energy at 298.15K-417.662766
HF Energy-417.317943
Nuclear repulsion energy65.523402
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/6-31+G**
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 2568 2392 88.77      
2 A1 1304 1214 301.04      
3 A1 1204 1121 4.15      
4 E 2556 2381 118.23      
4 E 2556 2381 118.23      
5 E 1181 1101 47.97      
5 E 1181 1101 47.97      
6 E 881 820 34.48      
6 E 881 820 34.48      

Unscaled Zero Point Vibrational Energy (zpe) 7155.4 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 6666.0 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 MP3=FULL/6-31+G**
ABC
3.57994 0.57198 0.57198

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

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 -1.105
H3 0.000 1.248 1.018
H4 -1.081 -0.624 1.018
H5 1.081 -0.624 1.018

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.49041.39881.39881.3988
O21.49042.46202.46202.4620
H31.39882.46202.16162.1616
H41.39882.46202.16162.1616
H51.39882.46202.16162.1616

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 116.854 O2 P1 H4 116.854
O2 P1 H5 116.854 H3 P1 H4 101.182
H3 P1 H5 101.182 H4 P1 H5 101.182
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability