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

using model chemistry: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3 1A
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-643.991068
Energy at 298.15K-643.996809
HF Energy-643.991068
Nuclear repulsion energy275.965513
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 B97D3/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3757 3692 20.05      
2 A 3756 3691 139.85      
3 A 3756 3691 141.34      
4 A 1255 1234 316.40      
5 A 1029 1011 67.44      
6 A 1029 1011 66.42      
7 A 1028 1011 66.56      
8 A 873 858 320.93      
9 A 872 857 321.57      
10 A 776 762 22.68      
11 A 429 422 27.62      
12 A 426 419 62.64      
13 A 426 418 62.67      
14 A 356 350 37.61      
15 A 355 349 37.16      
16 A 319 314 95.23      
17 A 152 149 70.68      
18 A 147 144 72.28      

Unscaled Zero Point Vibrational Energy (zpe) 10369.4 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 10191.0 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 B97D3/6-31+G**
ABC
0.14633 0.14400 0.14398

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.000 0.000 0.123
O2 0.001 0.002 1.613
O3 -1.451 -0.059 -0.601
O4 0.675 1.285 -0.604
O5 0.775 -1.228 -0.601
H6 -2.107 0.452 -0.098
H7 1.444 1.599 -0.101
H8 0.663 -2.051 -0.097

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.48981.62271.62281.62272.16662.16622.1663
O21.48982.64812.64792.64812.75222.75112.7518
O31.62272.64812.51502.51490.97163.37382.9479
O41.62282.64792.51502.51462.94800.97163.3736
O51.62272.64812.51492.51463.37422.94780.9715
H62.16662.75220.97162.94803.37423.73243.7330
H72.16622.75113.37380.97162.94783.73243.7324
H82.16632.75182.94793.37360.97153.73303.7324

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 112.693 P1 O4 H7 112.702
P1 O5 H8 112.705 O2 P1 O3 116.284
O2 P1 O4 116.281 O2 P1 O5 116.285
O3 P1 O4 101.885 O3 P1 O5 101.890
O4 P1 O5 101.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 1.604      
2 O -0.660      
3 O -0.697      
4 O -0.697      
5 O -0.697      
6 H 0.383      
7 H 0.382      
8 H 0.382      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.002 0.000 -0.153 0.153
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.326 -0.004 -0.005
y -0.004 -29.323 -0.018
z -0.005 -0.018 -45.186
Traceless
 xyz
x 7.929 -0.004 -0.005
y -0.004 7.933 -0.018
z -0.005 -0.018 -15.862
Polar
3z2-r2-31.724
x2-y2-0.003
xy-0.004
xz-0.005
yz-0.018


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.554 0.000 0.001
y 0.000 5.554 0.001
z 0.001 0.001 5.717


<r2> (average value of r2) Å2
<r2> 115.900
(<r2>)1/2 10.766