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All results from a given calculation for H2OH2O (water dimer)

using model chemistry: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-152.464629
Energy at 298.15K 
HF Energy-152.074477
Nuclear repulsion energy37.002413
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/6-311G*
Rotational Constants (cm-1) from geometry optimized at CISD/6-311G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.040 0.547 0.000
O2 -0.002 1.502 0.000
O3 -0.002 -1.370 0.000
H4 0.894 1.818 0.000
H5 -0.449 -1.711 0.768
H6 -0.449 -1.711 -0.768

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.95541.91761.53082.43542.4354
O20.95542.87160.95023.33393.3339
O31.91762.87163.31130.95160.9516
H41.53080.95023.31133.85353.8535
H52.43543.33390.95163.85351.5353
H62.43543.33390.95163.85351.5353

picture of water dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 106.893 H1 O3 H5 111.678
H1 O3 H6 111.678 O2 H1 O3 176.201
H5 O3 H6 107.548
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability