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

using model chemistry: LSDA/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 LSDA/STO-3G
 hartrees
Energy at 0K-411.991219
Energy at 298.15K-411.995419
HF Energy-411.991219
Nuclear repulsion energy62.582090
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 LSDA/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 2487 2227 126.93      
2 A1 1304 1168 101.91      
3 A1 1068 957 0.84      
4 E 2393 2143 156.86      
4 E 2393 2143 156.86      
5 E 1184 1061 21.91      
5 E 1184 1061 21.91      
6 E 672 601 14.93      
6 E 672 601 14.93      

Unscaled Zero Point Vibrational Energy (zpe) 6678.8 cm-1
Scaled (by 0.8955) Zero Point Vibrational Energy (zpe) 5980.8 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 LSDA/STO-3G
ABC
3.52547 0.51520 0.51520

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.399
O2 0.000 0.000 -1.167
H3 0.000 1.258 1.117
H4 -1.089 -0.629 1.117
H5 1.089 -0.629 1.117

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.56641.44821.44821.4482
O21.56642.60782.60782.6078
H31.44822.60782.17822.1782
H41.44822.60782.17822.1782
H51.44822.60782.17822.1782

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 119.730 O2 P1 H4 119.730
O2 P1 H5 119.730 H3 P1 H4 97.534
H3 P1 H5 97.534 H4 P1 H5 97.534
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.555      
2 O -0.390      
3 H -0.055      
4 H -0.055      
5 H -0.055      


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 2.479 2.479
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.390 0.000 0.000
y 0.000 -17.390 0.000
z 0.000 0.000 -19.939
Traceless
 xyz
x 1.274 0.000 0.000
y 0.000 1.274 0.000
z 0.000 0.000 -2.549
Polar
3z2-r2-5.098
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 1.625 0.000 0.000
y 0.000 1.625 0.000
z 0.000 0.000 2.778


<r2> (average value of r2) Å2
<r2> 33.172
(<r2>)1/2 5.759