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

using model chemistry: B3LYP/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-72.112710
Energy at 298.15K-72.117839
HF Energy-72.112710
Nuclear repulsion energy102.333268
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/CEP-121G
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 3689 3595 4.89      
2 A 1028 1002 288.94      
3 A 1000 975 0.01      
4 A 643 626 33.86      
5 A 371 362 55.95      
6 A 271 264 225.10      
7 E 3687 3593 132.30      
7 E 3687 3593 132.34      
8 E 1035 1008 52.32      
8 E 1035 1008 52.32      
9 E 734 716 282.23      
9 E 734 715 282.26      
10 E 345 336 57.96      
10 E 345 336 57.94      
11 E 301 294 54.89      
11 E 301 294 54.89      
12 E 129 126 93.75      
12 E 129 126 93.75      

Unscaled Zero Point Vibrational Energy (zpe) 9731.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 9483.4 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/CEP-121G
ABC
0.13396 0.12763 0.12763

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.155
O2 0.000 0.000 1.744
O3 0.000 1.516 -0.637
O4 1.313 -0.758 -0.637
O5 -1.313 -0.758 -0.637
H6 0.657 2.176 -0.330
H7 1.556 -1.657 -0.330
H8 -2.213 -0.519 -0.330

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.58861.71011.71011.71012.32392.32392.3239
O21.58862.82212.82212.82213.07643.07643.0764
O31.71012.82212.62512.62510.98053.54663.0216
O41.71012.82212.62512.62513.02160.98053.5466
O51.71012.82212.62512.62513.54663.02160.9805
H62.32393.07640.98053.02163.54663.93643.9364
H72.32393.07643.54660.98053.02163.93643.9364
H82.32393.07643.02163.54660.98053.93643.9364

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 116.845 P1 O4 H7 116.845
P1 O5 H8 116.845 O2 P1 O3 117.591
O2 P1 O4 117.591 O2 P1 O5 117.591
O3 P1 O4 100.267 O3 P1 O5 100.267
O4 P1 O5 100.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.959      
2 O -0.463      
3 O -0.581      
4 O -0.581      
5 O -0.581      
6 H 0.415      
7 H 0.415      
8 H 0.415      


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 -0.236 0.236
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.835 0.000 0.000
y 0.000 -28.835 0.000
z 0.000 0.000 -48.303
Traceless
 xyz
x 9.734 0.000 0.000
y 0.000 9.734 0.000
z 0.000 0.000 -19.468
Polar
3z2-r2-38.936
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 5.481 0.000 0.000
y 0.000 5.480 0.000
z 0.000 0.000 5.570


<r2> (average value of r2) Å2
<r2> 104.897
(<r2>)1/2 10.242