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

using model chemistry: CCD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-417.659959
Energy at 298.15K-417.664433
HF Energy-417.321219
Nuclear repulsion energy64.768222
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/cc-pVDZ
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 75.24      
2 A1 1277 1222 213.13      
3 A1 1167 1116 0.41      
4 E 2463 2356 129.94      
4 E 2463 2356 129.94      
5 E 1156 1106 41.91      
5 E 1156 1106 41.91      
6 E 855 818 35.90      
6 E 855 818 35.90      

Unscaled Zero Point Vibrational Energy (zpe) 6935.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 6635.5 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 CCD/cc-pVDZ
ABC
3.51669 0.55891 0.55891

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pVDZ

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 -1.117
H3 0.000 1.259 1.048
H4 -1.090 -0.630 1.048
H5 1.090 -0.630 1.048

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.50371.42251.42251.4225
O21.50372.50502.50502.5050
H31.42252.50502.18092.1809
H41.42252.50502.18092.1809
H51.42252.50502.18092.1809

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 117.729 O2 P1 H4 117.729
O2 P1 H5 117.729 H3 P1 H4 100.093
H3 P1 H5 100.093 H4 P1 H5 100.093
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability