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

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3 1A
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-644.133548
Energy at 298.15K-644.139316
HF Energy-644.133548
Nuclear repulsion energy277.481155
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 BLYP/6-31G(2df,p)
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 3695 3675 10.92      
2 A 1284 1277 214.64      
3 A 1037 1031 77.33      
4 A 786 782 15.88      
5 A 435 432 13.07      
6 A 311 309 81.93      
7 E 3694 3674 115.03      
7 E 3694 3674 115.03      
8 E 1045 1039 51.52      
8 E 1045 1039 51.50      
9 E 881 876 272.17      
9 E 881 876 272.16      
10 E 432 430 42.39      
10 E 432 430 42.38      
11 E 357 355 39.89      
11 E 357 355 39.89      
12 E 148 147 62.65      
12 E 148 147 62.65      

Unscaled Zero Point Vibrational Energy (zpe) 10329.9 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 10273.1 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 BLYP/6-31G(2df,p)
ABC
0.14862 0.14544 0.14544

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.126
O2 0.000 0.000 1.606
O3 0.000 1.440 -0.603
O4 1.247 -0.720 -0.603
O5 -1.247 -0.720 -0.603
H6 0.520 2.082 -0.086
H7 1.543 -1.491 -0.086
H8 -2.063 -0.591 -0.086

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.47981.61401.61401.61402.15612.15612.1561
O21.47982.63662.63662.63662.73242.73242.7324
O31.61402.63662.49422.49420.97413.35242.9404
O41.61402.63662.49422.49422.94040.97413.3524
O51.61402.63662.49422.49423.35242.94040.9741
H62.15612.73240.97412.94043.35243.71633.7163
H72.15612.73243.35240.97412.94043.71633.7163
H82.15612.73242.94043.35240.97413.71633.7163

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 110.377 P1 O4 H7 110.377
P1 O5 H8 110.377 O2 P1 O3 116.843
O2 P1 O4 116.843 O2 P1 O5 116.843
O3 P1 O4 101.195 O3 P1 O5 101.195
O4 P1 O5 101.195
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.282      
2 O -0.362      
3 O -0.287      
4 O -0.287      
5 O -0.287      
6 H 0.313      
7 H 0.313      
8 H 0.313      


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 -0.310 0.310
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.233 0.000 0.000
y 0.000 -28.233 0.000
z 0.000 0.000 -42.625
Traceless
 xyz
x 7.196 0.000 0.000
y 0.000 7.196 0.000
z 0.000 0.000 -14.391
Polar
3z2-r2-28.782
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 5.018 0.000 0.000
y 0.000 5.018 0.000
z 0.000 0.000 4.677


<r2> (average value of r2) Å2
<r2> 113.821
(<r2>)1/2 10.669