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

using model chemistry: CCSD(T)=FULL/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 CCSD(T)=FULL/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-417.977604
Energy at 298.15K-417.982155
HF Energy-417.401706
Nuclear repulsion energy65.833350
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(T)=FULL/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 2462 2462        
2 A1 1262 1262        
3 A1 1156 1156        
4 E 2447 2447        
4 E 2447 2447        
5 E 1152 1152        
5 E 1152 1152        
6 E 847 847        
6 E 847 847        

Unscaled Zero Point Vibrational Energy (zpe) 6886.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6886.3 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(T)=FULL/aug-cc-pV(T+d)Z
ABC
3.56660 0.57924 0.57924

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.381
O2 0.000 0.000 -1.097
H3 0.000 1.250 1.018
H4 -1.083 -0.625 1.018
H5 1.083 -0.625 1.018

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.47811.40321.40321.4032
O21.47812.45712.45712.4571
H31.40322.45712.16562.1656
H41.40322.45712.16562.1656
H51.40322.45712.16562.1656

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 116.999 O2 P1 H4 116.999
O2 P1 H5 116.999 H3 P1 H4 101.003
H3 P1 H5 101.003 H4 P1 H5 101.003
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability