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

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-413.140311
Energy at 298.15K-413.144523
HF Energy-413.140311
Nuclear repulsion energy62.587567
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 PBE1PBE/STO-3G
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 2620 2311 114.67      
2 A1 1344 1185 137.87      
3 A1 1014 894 6.76      
4 E 2565 2262 124.95      
4 E 2565 2262 124.94      
5 E 1247 1100 33.33      
5 E 1247 1100 33.34      
6 E 675 595 17.08      
6 E 675 595 17.08      

Unscaled Zero Point Vibrational Energy (zpe) 6974.6 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 6152.3 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 PBE1PBE/STO-3G
ABC
3.59916 0.51255 0.51255

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.403
O2 0.000 0.000 -1.172
H3 0.000 1.245 1.108
H4 -1.078 -0.622 1.108
H5 1.078 -0.622 1.108

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.57521.43041.43041.4304
O21.57522.59762.59762.5976
H31.43042.59762.15582.1558
H41.43042.59762.15582.1558
H51.43042.59762.15582.1558

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 119.523 O2 P1 H4 119.523
O2 P1 H5 119.523 H3 P1 H4 97.803
H3 P1 H5 97.803 H4 P1 H5 97.803
Electronic energy levels
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