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

using model chemistry: CCD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3 1A
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-643.085648
Energy at 298.15K-643.091580
HF Energy-642.162992
Nuclear repulsion energy279.027313
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 CCD/TZVP
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 3914 3711 22.05      
2 A 1337 1267 341.16      
3 A 1076 1020 71.64      
4 A 857 812 16.22      
5 A 452 428 27.91      
6 A 306 290 92.94      
7 E 3912 3708 168.53      
7 E 3912 3708 168.53      
8 E 1074 1018 68.16      
8 E 1074 1018 68.16      
9 E 956 906 351.21      
9 E 956 906 351.21      
10 E 458 434 95.38      
10 E 458 434 95.38      
11 E 369 350 45.92      
11 E 369 350 45.91      
12 E 146 138 76.99      
12 E 146 138 76.99      

Unscaled Zero Point Vibrational Energy (zpe) 10884.4 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 10318.4 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 CCD/TZVP
ABC
0.14895 0.14750 0.14750

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

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.114
O2 0.000 0.000 1.590
O3 0.000 1.440 -0.592
O4 1.247 -0.720 -0.592
O5 -1.247 -0.720 -0.592
H6 0.508 2.071 -0.073
H7 1.539 -1.475 -0.073
H8 -2.047 -0.596 -0.073

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.47651.60331.60331.60332.14012.14012.1401
O21.47652.61452.61452.61452.70432.70432.7043
O31.60332.61452.49342.49340.96183.33662.9328
O41.60332.61452.49342.49342.93280.96183.3366
O51.60332.61452.49342.49343.33662.93280.9618
H62.14012.70430.96182.93283.33663.69263.6926
H72.14012.70433.33660.96182.93283.69263.6926
H82.14012.70432.93283.33660.96183.69263.6926

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 110.585 P1 O4 H7 110.585
P1 O5 H8 110.585 O2 P1 O3 116.125
O2 P1 O4 116.125 O2 P1 O5 116.125
O3 P1 O4 102.074 O3 P1 O5 102.074
O4 P1 O5 102.074
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability