return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HF/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-307.439554
Energy at 298.15K-307.445231
HF Energy-307.439554
Nuclear repulsion energy158.668249
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/LANL2DZ
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 4111 3699 0.05      
2 A 1115 1003 278.24      
3 A 1032 929 142.83      
4 A 793 713 39.67      
5 A 459 413 110.04      
6 A 241 216 324.13      
7 E 4105 3694 343.22      
7 E 4105 3694 343.22      
8 E 1096 987 113.63      
8 E 1096 987 113.63      
9 E 873 785 328.89      
9 E 873 785 328.89      
10 E 426 384 144.40      
10 E 426 384 144.40      
11 E 357 321 40.68      
11 E 357 321 40.68      
12 E 153 138 122.12      
12 E 153 138 122.12      

Unscaled Zero Point Vibrational Energy (zpe) 10884.8 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 9795.3 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/LANL2DZ
ABC
0.14111 0.13661 0.13661

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.128
O2 0.000 0.000 1.689
O3 0.000 1.473 -0.597
O4 1.275 -0.736 -0.597
O5 -1.275 -0.736 -0.597
H6 0.605 2.173 -0.372
H7 1.579 -1.610 -0.372
H8 -2.184 -0.563 -0.372

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.56101.64171.64171.64172.31032.31032.3103
O21.56102.71972.71972.71973.05573.05573.0557
O31.64172.71972.55092.55090.95193.47112.9940
O41.64172.71972.55092.55092.99400.95193.4711
O51.64172.71972.55092.55093.47112.99400.9519
H62.31033.05570.95192.99403.47113.90643.9064
H72.31033.05573.47110.95192.99403.90643.9064
H82.31033.05572.99403.47110.95193.90643.9064

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 123.737 P1 O4 H7 123.737
P1 O5 H8 123.737 O2 P1 O3 116.223
O2 P1 O4 116.223 O2 P1 O5 116.223
O3 P1 O4 101.954 O3 P1 O5 101.954
O4 P1 O5 101.954
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 1.984      
2 O -0.831      
3 O -0.862      
4 O -0.862      
5 O -0.862      
6 H 0.478      
7 H 0.478      
8 H 0.478      


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 -1.101 1.101
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.044 0.000 0.000
y 0.000 -28.044 0.000
z 0.000 0.000 -49.787
Traceless
 xyz
x 10.872 0.000 0.000
y 0.000 10.872 0.000
z 0.000 0.000 -21.743
Polar
3z2-r2-43.486
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 3.845 0.000 0.000
y 0.000 3.845 0.000
z 0.000 0.000 4.064


<r2> (average value of r2) Å2
<r2> 121.244
(<r2>)1/2 11.011