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

using model chemistry: LSDA/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-417.042855
Energy at 298.15K-417.047257
HF Energy-417.042855
Nuclear repulsion energy64.767469
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/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2333 2298 91.70      
2 A1 1229 1210 182.68      
3 A1 1112 1095 6.30      
4 E 2317 2282 106.45      
4 E 2317 2282 106.45      
5 E 1061 1046 23.99      
5 E 1061 1046 23.99      
6 E 800 788 16.50      
6 E 800 788 16.49      

Unscaled Zero Point Vibrational Energy (zpe) 6514.9 cm-1
Scaled (by 0.985) Zero Point Vibrational Energy (zpe) 6417.2 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 LSDA/6-31+G**
ABC
3.43739 0.56142 0.56142

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.385
O2 0.000 0.000 -1.114
H3 0.000 1.274 1.044
H4 -1.103 -0.637 1.044
H5 1.103 -0.637 1.044

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.49881.43371.43371.4337
O21.49882.50512.50512.5051
H31.43372.50512.20592.2059
H41.43372.50512.20592.2059
H51.43372.50512.20592.2059

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 117.336 O2 P1 H4 117.336
O2 P1 H5 117.336 H3 P1 H4 100.585
H3 P1 H5 100.585 H4 P1 H5 100.585
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.577      
2 O -0.626      
3 H 0.016      
4 H 0.016      
5 H 0.016      


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 3.920 3.920
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.369 0.000 0.000
y 0.000 -19.369 0.000
z 0.000 0.000 -22.847
Traceless
 xyz
x 1.739 0.000 0.000
y 0.000 1.739 0.000
z 0.000 0.000 -3.478
Polar
3z2-r2-6.956
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 3.667 0.000 0.000
y 0.000 3.667 -0.000
z 0.000 -0.000 4.917


<r2> (average value of r2) Å2
<r2> 33.101
(<r2>)1/2 5.753