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All results from a given calculation for H2O (Water)

using model chemistry: CISD/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 CISD/6-31+G**
 hartrees
Energy at 0K-76.232325
Energy at 298.15K-76.233422
HF Energy-76.030682
Nuclear repulsion energy9.177064
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 CISD/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 3933 3626 8.41      
2 A1 1659 1529 92.46      
3 B2 4057 3739 54.80      

Unscaled Zero Point Vibrational Energy (zpe) 4824.2 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 4447.0 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 CISD/6-31+G**
ABC
28.08393 14.32237 9.48511

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.116
H2 0.000 0.764 -0.463
H3 0.000 -0.764 -0.463

Atom - Atom Distances (Å)
  O1 H2 H3
O10.95880.9588
H20.95881.5283
H30.95881.5283

picture of Water state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 O1 H3 105.691
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability