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

using model chemistry: B3LYP/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3LYP/6-31G*
 hartrees
Energy at 0K-418.357718
Energy at 298.15K-418.362181
HF Energy-418.357718
Nuclear repulsion energy65.091649
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 B3LYP/6-31G*
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 2440 2344 108.69      
2 A1 1295 1244 196.59      
3 A1 1168 1122 2.06      
4 E 2417 2321 168.83      
4 E 2417 2321 168.83      
5 E 1121 1077 46.47      
5 E 1121 1077 46.47      
6 E 865 831 29.78      
6 E 865 831 29.78      

Unscaled Zero Point Vibrational Energy (zpe) 6855.0 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 6582.9 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 B3LYP/6-31G*
ABC
3.52458 0.56543 0.56543

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.384
O2 0.000 0.000 -1.110
H3 0.000 1.258 1.043
H4 -1.089 -0.629 1.043
H5 1.089 -0.629 1.043

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.49411.42011.42011.4201
O21.49412.49392.49392.4939
H31.42012.49392.17852.1785
H41.42012.49392.17852.1785
H51.42012.49392.17852.1785

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 117.667 O2 P1 H4 117.667
O2 P1 H5 117.667 H3 P1 H4 100.172
H3 P1 H5 100.172 H4 P1 H5 100.172
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.607      
2 O -0.552      
3 H -0.018      
4 H -0.018      
5 H -0.018      


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 3.600 3.600
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.019 0.000 0.000
y 0.000 -19.019 0.000
z 0.000 0.000 -22.017
Traceless
 xyz
x 1.499 0.000 0.000
y 0.000 1.499 0.000
z 0.000 0.000 -2.998
Polar
3z2-r2-5.996
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 3.009 0.000 0.000
y 0.000 3.009 0.000
z 0.000 0.000 3.768


<r2> (average value of r2) Å2
<r2> 32.585
(<r2>)1/2 5.708