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All results from a given calculation for H2O (Water)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-76.233108
Energy at 298.15K-76.234204
HF Energy-76.030344
Nuclear repulsion energy9.135453
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 MP2/6-31+G**
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 3866 3637 10.08 78.43 0.08 0.15
2 A1 1623 1527 92.80 3.49 0.62 0.77
3 B2 4013 3775 66.60 34.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4751.4 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 4469.2 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 MP2/6-31+G**
ABC
27.64284 14.24490 9.40059

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.117
H2 0.000 0.766 -0.467
H3 0.000 -0.766 -0.467

Atom - Atom Distances (Å)
  O1 H2 H3
O10.96320.9632
H20.96321.5325
H30.96321.5325

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 105.404
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability