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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-416.919167
Energy at 298.15K-416.923460
HF Energy-416.919167
Nuclear repulsion energy61.189448
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 2177 2133 142.19      
2 A1 1120 1097 93.62      
3 A1 965 945 15.53      
4 E 2146 2102 194.12      
4 E 2146 2102 194.11      
5 E 1000 980 30.04      
5 E 1000 980 30.03      
6 E 733 718 6.32      
6 E 733 718 6.32      

Unscaled Zero Point Vibrational Energy (zpe) 6009.3 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 5887.3 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
3.30507 0.49240 0.49240

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 0.419
O2 0.000 0.000 -1.194
H3 0.000 1.299 1.089
H4 -1.125 -0.649 1.089
H5 1.125 -0.649 1.089

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.61351.46151.46151.4615
O21.61352.62712.62712.6271
H31.46152.62712.24962.2496
H41.46152.62712.24962.2497
H51.46152.62712.24962.2497

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 117.289 O2 P1 H4 117.289
O2 P1 H5 117.289 H3 P1 H4 100.644
H3 P1 H5 100.644 H4 P1 H5 100.644
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 0.557      
2 O -0.575      
3 H 0.006      
4 H 0.006      
5 H 0.006      


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 4.301 4.301
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.831 0.000 0.000
y 0.000 -19.831 0.000
z 0.000 0.000 -23.217
Traceless
 xyz
x 1.693 0.000 0.000
y 0.000 1.693 0.000
z 0.000 0.000 -3.386
Polar
3z2-r2-6.771
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 3.374 0.000 0.000
y 0.000 3.374 0.000
z 0.000 0.000 4.789


<r2> (average value of r2) Å2
<r2> 35.758
(<r2>)1/2 5.980