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All results from a given calculation for PH4 (Phosphoranyl radical)

using model chemistry: HF/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-8.505691
Energy at 298.15K 
HF Energy-8.505691
Nuclear repulsion energy8.337046
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 HF/CEP-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 2418 2179 85.88 268.96 0.13 0.24
2 A1 1501 1353 18.28 284.55 0.33 0.50
3 A1 1099 990 7.00 64.42 0.52 0.69
4 A1 871 785 10.10 3.90 0.07 0.13
5 A2 1183 1066 0.00 93.13 0.75 0.86
6 B1 2462 2220 183.17 221.15 0.75 0.86
7 B1 828 746 12.20 0.47 0.75 0.86
8 B2 1172 1057 4.22 69.64 0.75 0.86
9 B2 916i 825i 735.33 88.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5308.4 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 4785.0 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 HF/CEP-31G
ABC
4.15408 2.42411 2.20530

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.088
H2 0.000 1.617 0.180
H3 0.000 -1.617 0.180
H4 1.085 0.000 -0.843
H5 -1.085 0.000 -0.843

Atom - Atom Distances (Å)
  P1 H2 H3 H4 H5
P11.61961.61961.43021.4302
H21.61963.23392.19992.1999
H31.61963.23392.19992.1999
H41.43022.19992.19992.1705
H51.43022.19992.19992.1705

picture of Phosphoranyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 P1 H3 173.505 H2 P1 H4 92.114
H2 P1 H5 92.114 H3 P1 H4 92.114
H3 P1 H5 92.114 H4 P1 H5 98.721
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.174      
2 H -0.060      
3 H -0.060      
4 H -0.026      
5 H -0.026      


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 -1.381 1.381
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.084 0.000 0.000
y 0.000 -17.886 0.000
z 0.000 0.000 -17.030
Traceless
 xyz
x 2.374 0.000 0.000
y 0.000 -1.829 0.000
z 0.000 0.000 -0.545
Polar
3z2-r2-1.091
x2-y22.802
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.004 0.000 0.000
y 0.000 5.033 0.000
z 0.000 0.000 2.086


<r2> (average value of r2) Å2
<r2> 19.520
(<r2>)1/2 4.418