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

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-642.942210
Energy at 298.15K-642.948076
HF Energy-642.039174
Nuclear repulsion energy275.190226
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(T)/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 3836 3754        
2 A 1300 1272        
3 A 1077 1054        
4 A 807 790        
5 A 439 430        
6 A 311 305        
7 E 3834 3753        
7 E 3834 3752        
8 E 1080 1058        
8 E 1079 1056        
9 E 923 904        
9 E 923 903        
10 E 437 427        
10 E 436 427        
11 E 364 356        
11 E 362 355        
12 E 154 151        
12 E 151 148        

Unscaled Zero Point Vibrational Energy (zpe) 10673.2 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 10447.0 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(T)/cc-pVDZ
ABC
0.14607 0.14285 0.14285

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVDZ

Point Group is C3

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.126
O2 0.000 0.000 1.620
O3 0.000 1.456 -0.609
O4 1.261 -0.728 -0.609
O5 -1.261 -0.728 -0.609
H6 0.537 2.062 -0.075
H7 1.518 -1.496 -0.075
H8 -2.054 -0.566 -0.075

Atom - Atom Distances (Å)
  P1 O2 O3 O4 O5 H6 H7 H8
P11.49371.63101.63101.63102.14042.14042.1404
O21.49372.66252.66252.66252.72302.72302.7230
O31.63102.66252.52132.52130.97023.36162.9316
O41.63102.66252.52132.52132.93160.97023.3616
O51.63102.66252.52132.52133.36162.93160.9702
H62.14042.72300.97022.93163.36163.69093.6909
H72.14042.72303.36160.97022.93163.69093.6909
H82.14042.72302.93163.36160.97023.69093.6909

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 108.039 P1 O4 H7 108.039
P1 O5 H8 108.039 O2 P1 O3 116.812
O2 P1 O4 116.812 O2 P1 O5 116.812
O3 P1 O4 101.233 O3 P1 O5 101.233
O4 P1 O5 101.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability