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

using model chemistry: CCD/aug-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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-417.820763
Energy at 298.15K-417.825244
HF Energy-417.392069
Nuclear repulsion energy65.635425
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/aug-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 2481 2374 67.94      
2 A1 1275 1220 195.16      
3 A1 1174 1123 1.69      
4 E 2471 2365 71.80      
4 E 2471 2365 71.79      
5 E 1155 1105 24.33      
5 E 1155 1105 24.33      
6 E 861 824 25.91      
6 E 861 824 25.91      

Unscaled Zero Point Vibrational Energy (zpe) 6951.0 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 6652.1 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/aug-cc-pVTZ
ABC
3.52217 0.57639 0.57639

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-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 -1.099
H3 0.000 1.258 1.016
H4 -1.090 -0.629 1.016
H5 1.090 -0.629 1.016

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48231.40841.40841.4084
O21.48232.46122.46122.4612
H31.40842.46122.17922.1792
H41.40842.46122.17922.1792
H51.40842.46122.17922.1792

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 116.706 O2 P1 H4 116.706
O2 P1 H5 116.706 H3 P1 H4 101.364
H3 P1 H5 101.364 H4 P1 H5 101.364
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability