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

using model chemistry: MP2=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3 1A
Energy calculated at MP2=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-643.043065
Energy at 298.15K-643.048910
HF Energy-642.084919
Nuclear repulsion energy274.648228
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 MP2=FULL/aug-cc-pVDZ
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 3806 3689 17.49      
2 A 1265 1226 309.92      
3 A 1079 1046 52.89      
4 A 798 774 16.22      
5 A 427 413 22.98      
6 A 304 294 71.53      
7 E 3805 3688 178.68      
7 E 3805 3688 178.68      
8 E 1079 1046 64.90      
8 E 1079 1046 64.90      
9 E 908 880 296.20      
9 E 908 880 296.20      
10 E 426 413 56.49      
10 E 426 413 56.49      
11 E 362 351 48.93      
11 E 362 351 48.93      
12 E 159 154 59.94      
12 E 159 154 59.94      

Unscaled Zero Point Vibrational Energy (zpe) 10578.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 10252.9 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 MP2=FULL/aug-cc-pVDZ
ABC
0.14629 0.14194 0.14194

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVDZ

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.127
O2 0.000 0.000 1.632
O3 0.000 1.453 -0.613
O4 1.258 -0.726 -0.613
O5 -1.258 -0.726 -0.613
H6 0.503 2.088 -0.080
H7 1.557 -1.480 -0.080
H8 -2.060 -0.608 -0.080

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.50421.63071.63071.63072.15822.15822.1582
O21.50422.67402.67402.67402.74692.74692.7469
O31.63072.67402.51642.51640.97013.36302.9626
O41.63072.67402.51642.51642.96260.97013.3630
O51.63072.67402.51642.51643.36302.96260.9701
H62.15822.74690.97012.96263.36303.72073.7207
H72.15822.74693.36300.97012.96263.72073.7207
H82.15822.74692.96263.36300.97013.72073.7207

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 109.522 P1 O4 H7 109.522
P1 O5 H8 109.522 O2 P1 O3 117.012
O2 P1 O4 117.012 O2 P1 O5 117.012
O3 P1 O4 100.987 O3 P1 O5 100.987
O4 P1 O5 100.987
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability