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All results from a given calculation for H2O (Water)

using model chemistry: MP2=FULL/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2=FULL/CEP-121G
 hartrees
Energy at 0K-16.956350
Energy at 298.15K-16.957446
HF Energy-16.828326
Nuclear repulsion energy6.821432
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/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3628 3420 4.18      
2 A1 1615 1523 98.11      
3 B2 3820 3601 24.32      

Unscaled Zero Point Vibrational Energy (zpe) 4531.4 cm-1
Scaled (by 0.9427) Zero Point Vibrational Energy (zpe) 4271.8 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/CEP-121G
ABC
30.09135 12.98859 9.07253

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.112
H2 0.000 0.802 -0.448
H3 0.000 -0.802 -0.448

Atom - Atom Distances (Å)
  O1 H2 H3
O10.97820.9782
H20.97821.6049
H30.97821.6049

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 110.235
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability