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

using model chemistry: QCISD/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 QCISD/cc-pV(T+d)Z
 hartrees
Energy at 0K-417.823929
Energy at 298.15K-417.828418
HF Energy-417.398647
Nuclear repulsion energy65.960955
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 QCISD/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 2477 2365 66.33      
2 A1 1300 1241 174.50      
3 A1 1184 1131 2.58      
4 E 2459 2348 94.28      
4 E 2459 2348 94.28      
5 E 1159 1106 31.11      
5 E 1159 1106 31.11      
6 E 869 830 29.99      
6 E 869 830 29.99      

Unscaled Zero Point Vibrational Energy (zpe) 6967.7 cm-1
Scaled (by 0.9547) 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 QCISD/cc-pV(T+d)Z
ABC
3.55497 0.58246 0.58246

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/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 -1.093
H3 0.000 1.252 1.019
H4 -1.085 -0.626 1.019
H5 1.085 -0.626 1.019

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.47261.40621.40621.4062
O21.47262.45542.45542.4554
H31.40622.45542.16912.1691
H41.40622.45542.16912.1691
H51.40622.45542.16912.1691

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 117.049 O2 P1 H4 117.049
O2 P1 H5 117.049 H3 P1 H4 100.941
H3 P1 H5 100.941 H4 P1 H5 100.941
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability