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All results from a given calculation for H3PO4 (Phosphoric Acid)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3 1A
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-642.119215
Energy at 298.15K-642.125568
HF Energy-642.119215
Nuclear repulsion energy284.349317
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/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 4175 3776 22.69      
2 A 1426 1289 434.18      
3 A 1123 1016 187.60      
4 A 932 843 14.20      
5 A 512 463 46.30      
6 A 327 296 155.12      
7 E 4170 3771 227.19      
7 E 4170 3771 227.19      
8 E 1143 1034 112.55      
8 E 1143 1034 112.55      
9 E 1010 914 415.17      
9 E 1010 914 415.17      
10 E 512 463 153.69      
10 E 512 463 153.69      
11 E 416 376 36.87      
11 E 416 376 36.87      
12 E 184 166 102.24      
12 E 184 166 102.24      

Unscaled Zero Point Vibrational Energy (zpe) 11682.5 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 10565.7 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/6-311G*
ABC
0.15387 0.15387 0.15293

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G*

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.108
O2 0.000 0.000 1.553
O3 0.000 1.417 -0.567
O4 1.227 -0.708 -0.567
O5 -1.227 -0.708 -0.567
H6 0.511 2.084 -0.143
H7 1.550 -1.484 -0.143
H8 -2.060 -0.600 -0.143

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.44471.56951.56951.56952.16052.16052.1605
O21.44472.55002.55002.55002.73512.73512.7351
O31.56952.55002.45382.45380.94153.31632.9139
O41.56952.55002.45382.45382.91390.94153.3163
O51.56952.55002.45382.45383.31632.91390.9415
H62.16052.73510.94152.91393.31633.71663.7166
H72.16052.73513.31630.94152.91393.71663.7166
H82.16052.73512.91393.31630.94153.71663.7166

picture of Phosphoric Acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 O3 H6 116.479 P1 O4 H7 116.479
P1 O5 H8 116.479 O2 P1 O3 115.493
O2 P1 O4 115.493 O2 P1 O5 115.493
O3 P1 O4 102.834 O3 P1 O5 102.834
O4 P1 O5 102.834
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 1.648      
2 O -0.735      
3 O -0.794      
4 O -0.794      
5 O -0.794      
6 H 0.489      
7 H 0.489      
8 H 0.489      


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 -0.341 0.341
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.823 0.000 0.000
y 0.000 -27.823 0.000
z 0.000 0.000 -46.086
Traceless
 xyz
x 9.132 0.000 0.000
y 0.000 9.132 0.000
z 0.000 0.000 -18.264
Polar
3z2-r2-36.527
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 3.671 0.000 0.000
y 0.000 3.671 0.000
z 0.000 0.000 3.508


<r2> (average value of r2) Å2
<r2> 110.418
(<r2>)1/2 10.508