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

using model chemistry: B1B95/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/TZVP
 hartrees
Energy at 0K-418.399781
Energy at 298.15K-418.404230
HF Energy-418.399781
Nuclear repulsion energy65.125136
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 B1B95/TZVP
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 2426 2321 81.78      
2 A1 1251 1197 210.24      
3 A1 1149 1100 1.62      
4 E 2410 2306 113.12      
4 E 2410 2306 113.14      
5 E 1121 1072 30.03      
5 E 1121 1072 30.03      
6 E 830 795 29.15      
6 E 830 795 29.13      

Unscaled Zero Point Vibrational Energy (zpe) 6773.8 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 6481.9 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 B1B95/TZVP
ABC
3.50382 0.56655 0.56655

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

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 -1.109
H3 0.000 1.261 1.034
H4 -1.092 -0.631 1.034
H5 1.092 -0.631 1.034

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.49391.41881.41881.4188
O21.49392.48702.48702.4870
H31.41882.48702.18492.1849
H41.41882.48702.18492.1849
H51.41882.48702.18492.1849

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 117.240 O2 P1 H4 117.240
O2 P1 H5 117.240 H3 P1 H4 100.704
H3 P1 H5 100.704 H4 P1 H5 100.704
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.542      
2 O -0.522      
3 H -0.007      
4 H -0.007      
5 H -0.007      


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 3.919 3.919
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.986 0.000 0.000
y 0.000 -18.986 0.000
z 0.000 0.000 -22.645
Traceless
 xyz
x 1.830 0.000 0.000
y 0.000 1.830 0.000
z 0.000 0.000 -3.659
Polar
3z2-r2-7.318
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 3.395 0.000 0.000
y 0.000 3.396 0.000
z 0.000 0.000 4.371


<r2> (average value of r2) Å2
<r2> 32.664
(<r2>)1/2 5.715