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

using model chemistry: CCSD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3 1A
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-643.326337
Energy at 298.15K-643.332454
HF Energy-642.218144
Nuclear repulsion energy281.344884
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 CCSD/cc-pVTZ
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 3908 3678 24.40      
2 A 1363 1283 289.30      
3 A 1075 1012 91.93      
4 A 874 823 14.42      
5 A 466 438 19.48      
6 A 318 300 87.32      
7 E 3905 3675 183.34      
7 E 3905 3675 183.34      
8 E 1085 1021 66.37      
8 E 1085 1021 66.37      
9 E 965 909 321.36      
9 E 965 909 321.36      
10 E 472 444 77.31      
10 E 472 444 77.31      
11 E 386 363 38.13      
11 E 386 363 38.13      
12 E 172 162 69.12      
12 E 172 162 69.12      

Unscaled Zero Point Vibrational Energy (zpe) 10986.7 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 10340.7 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 CCSD/cc-pVTZ
ABC
0.15158 0.15002 0.15002

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pVTZ

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.113
O2 0.000 0.000 1.578
O3 0.000 1.426 -0.587
O4 1.235 -0.713 -0.587
O5 -1.235 -0.713 -0.587
H6 0.506 2.061 -0.076
H7 1.532 -1.469 -0.076
H8 -2.038 -0.592 -0.076

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.46461.58871.58871.58872.13072.13072.1307
O21.46462.59222.59222.59222.69022.69022.6902
O31.58872.59222.47022.47020.95983.31522.9135
O41.58872.59222.47022.47022.91350.95983.3152
O51.58872.59222.47022.47023.31522.91350.9598
H62.13072.69020.95982.91353.31523.67613.6761
H72.13072.69023.31520.95982.91353.67613.6761
H82.13072.69022.91353.31520.95983.67613.6761

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 111.036 P1 O4 H7 111.036
P1 O5 H8 111.036 O2 P1 O3 116.146
O2 P1 O4 116.146 O2 P1 O5 116.146
O3 P1 O4 102.048 O3 P1 O5 102.048
O4 P1 O5 102.047
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability