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

using model chemistry: B1B95/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-418.375607
Energy at 298.15K-418.380029
HF Energy-418.375607
Nuclear repulsion energy64.474622
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/aug-cc-pVDZ
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 2419 2317 76.42      
2 A1 1197 1147 167.12      
3 A1 1109 1062 0.01      
4 E 2413 2312 74.92      
4 E 2413 2312 74.95      
5 E 1099 1052 18.62      
5 E 1099 1052 18.62      
6 E 809 775 18.83      
6 E 809 775 18.85      

Unscaled Zero Point Vibrational Energy (zpe) 6682.7 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 6401.4 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/aug-cc-pVDZ
ABC
3.43815 0.55476 0.55476

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.391
O2 0.000 0.000 -1.121
H3 0.000 1.273 1.033
H4 -1.103 -0.637 1.033
H5 1.103 -0.637 1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.51261.42601.42601.4260
O21.51262.50252.50252.5025
H31.42602.50252.20572.2057
H41.42602.50252.20572.2057
H51.42602.50252.20572.2057

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 116.741 O2 P1 H4 116.741
O2 P1 H5 116.741 H3 P1 H4 101.321
H3 P1 H5 101.321 H4 P1 H5 101.321
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P -0.204      
2 O -0.726      
3 H 0.310      
4 H 0.310      
5 H 0.310      


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 3.853 3.853
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.016 0.000 0.000
y 0.000 -19.016 0.000
z 0.000 0.000 -22.861
Traceless
 xyz
x 1.922 0.000 0.000
y 0.000 1.922 0.000
z 0.000 0.000 -3.845
Polar
3z2-r2-7.689
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 4.209 0.000 0.000
y 0.000 4.209 -0.000
z 0.000 -0.000 5.129


<r2> (average value of r2) Å2
<r2> 33.100
(<r2>)1/2 5.753