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

using model chemistry: CCSD=FULL/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 CCSD=FULL/cc-pVDZ
 hartrees
Energy at 0K-417.674114
Energy at 298.15K-417.678584
HF Energy-417.321080
Nuclear repulsion energy64.688217
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 CCSD=FULL/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 2484 2484 77.80      
2 A1 1272 1272 198.98      
3 A1 1157 1157 1.18      
4 E 2465 2465 132.76      
4 E 2465 2465 132.76      
5 E 1153 1153 40.98      
5 E 1153 1153 40.98      
6 E 852 852 34.67      
6 E 852 852 34.67      

Unscaled Zero Point Vibrational Energy (zpe) 6925.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6925.0 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 CCSD=FULL/cc-pVDZ
ABC
3.52160 0.55707 0.55707

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.387
O2 0.000 0.000 -1.119
H3 0.000 1.258 1.049
H4 -1.090 -0.629 1.049
H5 1.090 -0.629 1.049

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.50671.42181.42181.4218
O21.50672.50732.50732.5073
H31.42182.50732.17942.1794
H41.42182.50732.17942.1794
H51.42182.50732.17942.1794

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 117.750 O2 P1 H4 117.750
O2 P1 H5 117.750 H3 P1 H4 100.068
H3 P1 H5 100.068 H4 P1 H5 100.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability