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

using model chemistry: B3LYP/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 B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-644.203471
Energy at 298.15K-644.209417
HF Energy-644.203471
Nuclear repulsion energy280.840193
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 B3LYP/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 3843 3709 18.37      
2 A 1342 1295 244.90      
3 A 1053 1017 100.04      
4 A 842 813 14.69      
5 A 455 439 13.52      
6 A 312 301 89.25      
7 E 3841 3706 158.35      
7 E 3841 3706 158.35      
8 E 1066 1029 55.41      
8 E 1066 1029 55.39      
9 E 931 898 301.07      
9 E 931 898 301.07      
10 E 456 440 59.44      
10 E 456 440 59.43      
11 E 373 360 39.95      
11 E 373 360 39.95      
12 E 156 151 68.80      
12 E 156 151 68.81      

Unscaled Zero Point Vibrational Energy (zpe) 10746.9 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 10370.7 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 B3LYP/6-31G(2df,p)
ABC
0.15150 0.14933 0.14933

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.119
O2 0.000 0.000 1.582
O3 0.000 1.426 -0.591
O4 1.235 -0.713 -0.591
O5 -1.235 -0.713 -0.591
H6 0.505 2.072 -0.085
H7 1.542 -1.473 -0.085
H8 -2.047 -0.599 -0.085

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.46371.59241.59241.59242.14232.14232.1423
O21.46372.59902.59902.59902.70682.70682.7068
O31.59242.59902.46922.46920.96393.32232.9230
O41.59242.59902.46922.46922.92300.96393.3223
O51.59242.59902.46922.46923.32232.92300.9639
H62.14232.70680.96392.92303.32233.69393.6939
H72.14232.70683.32230.96392.92303.69393.6939
H82.14232.70682.92303.32230.96393.69393.6939

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 111.491 P1 O4 H7 111.491
P1 O5 H8 111.491 O2 P1 O3 116.457
O2 P1 O4 116.457 O2 P1 O5 116.457
O3 P1 O4 101.669 O3 P1 O5 101.669
O4 P1 O5 101.669
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.365      
2 O -0.401      
3 O -0.321      
4 O -0.321      
5 O -0.321      
6 H 0.333      
7 H 0.333      
8 H 0.333      


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 -0.374 0.374
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.870 0.000 0.000
y 0.000 -27.870 0.000
z 0.000 0.000 -42.761
Traceless
 xyz
x 7.445 0.000 0.000
y 0.000 7.445 0.000
z 0.000 0.000 -14.890
Polar
3z2-r2-29.781
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 4.700 0.000 0.000
y 0.000 4.700 0.000
z 0.000 0.000 4.407


<r2> (average value of r2) Å2
<r2> 111.568
(<r2>)1/2 10.563