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

using model chemistry: MP3/6-31+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 MP3/6-31+G**
 hartrees
Energy at 0K-642.880043
Energy at 298.15K 
HF Energy-642.037521
Nuclear repulsion energy279.530230
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 MP3/6-31+G**
Rotational Constants (cm-1) from geometry optimized at MP3/6-31+G**
ABC
0.14932 0.14813 0.14813

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-31+G**

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.115
O2 0.000 0.000 1.583
O3 0.000 1.431 -0.588
O4 1.239 -0.715 -0.588
O5 -1.239 -0.715 -0.588
H6 0.501 2.081 -0.090
H7 1.552 -1.474 -0.090
H8 -2.053 -0.607 -0.090

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.46741.59441.59441.59442.15012.15012.1501
O21.46742.60012.60012.60012.71632.71632.7163
O31.59442.60012.47802.47800.96043.33092.9347
O41.59442.60012.47802.47802.93470.96043.3309
O51.59442.60012.47802.47803.33092.93470.9604
H62.15012.71630.96042.93473.33093.70713.7071
H72.15012.71633.33090.96042.93473.70713.7071
H82.15012.71632.93473.33090.96043.70713.7071

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 112.233 P1 O4 H7 112.233
P1 O5 H8 112.233 O2 P1 O3 116.192
O2 P1 O4 116.192 O2 P1 O5 116.192
O3 P1 O4 101.992 O3 P1 O5 101.992
O4 P1 O5 101.992
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability