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

using model chemistry: LSDA/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 LSDA/6-31G*
 hartrees
Energy at 0K-417.029535
Energy at 298.15K-417.033955
HF Energy-417.029535
Nuclear repulsion energy64.858839
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/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 2347 2303 99.76      
2 A1 1262 1239 148.54      
3 A1 1138 1117 1.73      
4 E 2325 2281 145.11      
4 E 2325 2281 145.10      
5 E 1060 1040 32.82      
5 E 1060 1040 32.82      
6 E 832 816 21.81      
6 E 832 816 21.81      

Unscaled Zero Point Vibrational Energy (zpe) 6589.7 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 6466.5 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/6-31G*
ABC
3.47092 0.56261 0.56261

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.382
O2 0.000 0.000 -1.112
H3 0.000 1.267 1.055
H4 -1.098 -0.634 1.055
H5 1.098 -0.634 1.055

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.49481.43491.43491.4349
O21.49482.51092.51092.5109
H31.43492.51092.19522.1952
H41.43492.51092.19522.1952
H51.43492.51092.19522.1952

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 117.961 O2 P1 H4 117.961
O2 P1 H5 117.961 H3 P1 H4 99.802
H3 P1 H5 99.802 H4 P1 H5 99.802
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.419      
2 O -0.481      
3 H 0.020      
4 H 0.020      
5 H 0.020      


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 3.451 3.451
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.106 0.000 0.000
y 0.000 -19.106 0.000
z 0.000 0.000 -21.747
Traceless
 xyz
x 1.321 0.000 0.000
y 0.000 1.321 0.000
z 0.000 0.000 -2.641
Polar
3z2-r2-5.283
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 3.164 0.000 0.000
y 0.000 3.164 0.000
z 0.000 0.000 3.980


<r2> (average value of r2) Å2
<r2> 32.735
(<r2>)1/2 5.721