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

using model chemistry: HSEh1PBE/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 HSEh1PBE/STO-3G
 hartrees
Energy at 0K-413.160746
Energy at 298.15K-413.164954
HF Energy-413.160746
Nuclear repulsion energy62.551469
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 HSEh1PBE/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 2613 2308 116.73      
2 A1 1342 1185 137.70      
3 A1 1011 893 6.51      
4 E 2557 2258 127.93      
4 E 2557 2258 127.92      
5 E 1245 1100 33.25      
5 E 1245 1100 33.25      
6 E 672 594 16.96      
6 E 672 594 16.96      

Unscaled Zero Point Vibrational Energy (zpe) 6957.5 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 6144.2 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 HSEh1PBE/STO-3G
ABC
3.59651 0.51193 0.51193

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.404
O2 0.000 0.000 -1.173
H3 0.000 1.245 1.109
H4 -1.078 -0.623 1.109
H5 1.078 -0.623 1.109

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.57611.43121.43121.4312
O21.57612.59942.59942.5994
H31.43122.59942.15662.1566
H41.43122.59942.15662.1566
H51.43122.59942.15662.1566

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 119.545 O2 P1 H4 119.545
O2 P1 H5 119.545 H3 P1 H4 97.774
H3 P1 H5 97.774 H4 P1 H5 97.774
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.643      
2 O -0.426      
3 H -0.072      
4 H -0.072      
5 H -0.072      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.746 2.746
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.440 0.000 0.000
y 0.000 -17.440 0.000
z 0.000 0.000 -20.308
Traceless
 xyz
x 1.434 0.000 0.000
y 0.000 1.434 0.000
z 0.000 0.000 -2.868
Polar
3z2-r2-5.735
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.589 0.000 0.000
y 0.000 1.589 0.000
z 0.000 0.000 2.722


<r2> (average value of r2) Å2
<r2> 33.273
(<r2>)1/2 5.768