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

using model chemistry: CID/aug-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 CID/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-417.792598
Energy at 298.15K-417.797180
HF Energy-417.402552
Nuclear repulsion energy66.292128
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 CID/aug-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 2543 2543 65.29      
2 A1 1319 1319 212.19      
3 A1 1210 1210 2.84      
4 E 2528 2528 74.56      
4 E 2528 2528 74.56      
5 E 1186 1186 27.33      
5 E 1186 1186 27.33      
6 E 891 891 31.17      
6 E 891 891 31.17      

Unscaled Zero Point Vibrational Energy (zpe) 7140.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7140.0 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 CID/aug-cc-pV(T+d)Z
ABC
3.56556 0.58892 0.58892

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.379
O2 0.000 0.000 -1.087
H3 0.000 1.250 1.006
H4 -1.083 -0.625 1.006
H5 1.083 -0.625 1.006

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.46561.39891.39891.3989
O21.46562.43782.43782.4378
H31.39892.43782.16592.1659
H41.39892.43782.16592.1659
H51.39892.43782.16592.1659

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 116.629 O2 P1 H4 116.628
O2 P1 H5 116.628 H3 P1 H4 101.459
H3 P1 H5 101.459 H4 P1 H5 101.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability