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

using model chemistry: CISD/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CISD/cc-pV(T+d)Z
 hartrees
Energy at 0K-417.784866
Energy at 298.15K-417.789379
HF Energy-417.399308
Nuclear repulsion energy66.363830
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 CISD/cc-pV(T+d)Z
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 2540 2540 62.63      
2 A1 1336 1336 201.84      
3 A1 1218 1218 3.97      
4 E 2521 2521 94.47      
4 E 2521 2521 94.47      
5 E 1188 1188 33.98      
5 E 1188 1188 33.98      
6 E 895 895 35.55      
6 E 895 895 35.55      

Unscaled Zero Point Vibrational Energy (zpe) 7150.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7150.6 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 CISD/cc-pV(T+d)Z
ABC
3.58053 0.59014 0.59014

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/cc-pV(T+d)Z

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.377
O2 0.000 0.000 -1.086
H3 0.000 1.248 1.010
H4 -1.081 -0.624 1.010
H5 1.081 -0.624 1.010

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.46301.39931.39931.3993
O21.46302.43952.43952.4395
H31.39932.43952.16142.1614
H41.39932.43952.16142.1614
H51.39932.43952.16142.1614

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 116.905 O2 P1 H4 116.905
O2 P1 H5 116.905 H3 P1 H4 101.119
H3 P1 H5 101.119 H4 P1 H5 101.119
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability