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

using model chemistry: MP2=FULL/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/cc-pVDZ
 hartrees
Energy at 0K-642.924201
Energy at 298.15K-642.930099
HF Energy-642.039691
Nuclear repulsion energy275.636604
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/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 3848 3658 24.44      
2 A 1316 1251 256.87      
3 A 1072 1019 59.61      
4 A 817 777 16.10      
5 A 441 419 31.12      
6 A 311 296 76.53      
7 E 3846 3656 170.04      
7 E 3846 3656 170.04      
8 E 1074 1021 62.43      
8 E 1074 1021 62.43      
9 E 929 883 312.77      
9 E 929 883 312.77      
10 E 441 419 74.47      
10 E 441 419 74.47      
11 E 367 349 41.31      
11 E 367 349 41.31      
12 E 155 148 70.97      
12 E 155 148 70.97      

Unscaled Zero Point Vibrational Energy (zpe) 10715.2 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 10183.7 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 MP2=FULL/cc-pVDZ
ABC
0.14674 0.14325 0.14325

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

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.125
O2 0.000 0.000 1.619
O3 0.000 1.452 -0.609
O4 1.258 -0.726 -0.609
O5 -1.258 -0.726 -0.609
H6 0.526 2.062 -0.069
H7 1.523 -1.486 -0.069
H8 -2.048 -0.576 -0.069

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.49331.62761.62761.62762.13652.13652.1365
O21.49332.65972.65972.65972.71552.71552.7155
O31.62762.65972.51532.51530.96973.35332.9326
O41.62762.65972.51532.51532.93260.96973.3533
O51.62762.65972.51532.51533.35332.93260.9697
H62.13652.71550.96972.93263.35333.68523.6852
H72.13652.71553.35330.96972.93263.68523.6852
H82.13652.71552.93263.35330.96973.68523.6852

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 107.997 P1 O4 H7 107.997
P1 O5 H8 107.997 O2 P1 O3 116.842
O2 P1 O4 116.842 O2 P1 O5 116.842
O3 P1 O4 101.196 O3 P1 O5 101.196
O4 P1 O5 101.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability