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

using model chemistry: B2PLYP=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULL/6-31G*
 hartrees
Energy at 0K-152.683665
Energy at 298.15K-152.686419
HF Energy-152.560393
Nuclear repulsion energy36.870470
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 B2PLYP=FULL/6-31G*
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' 3856 3657 66.00      
2 A' 3750 3557 12.39      
3 A' 3677 3487 234.88      
4 A' 1758 1667 85.98      
5 A' 1726 1637 73.84      
6 A' 453 430 28.35      
7 A' 228 216 167.42      
8 A' 135 128 274.12      
9 A" 3872 3672 53.47      
10 A" 682 647 138.16      
11 A" 167 159 202.42      
12 A" 36 34 28.46      

Unscaled Zero Point Vibrational Energy (zpe) 10170.3 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 9645.5 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 B2PLYP=FULL/6-31G*
ABC
6.69217 0.22292 0.22243

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.171 0.530 0.000
O2 0.005 1.489 0.000
O3 0.005 -1.401 0.000
H4 0.888 1.881 0.000
H5 -0.569 -1.559 0.765
H6 -0.569 -1.559 -0.765

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97391.93811.52922.34462.3446
O20.97392.89050.96623.19493.1949
O31.93812.89053.39850.96940.9694
H41.52920.96623.39853.81313.8131
H52.34463.19490.96943.81311.5304
H62.34463.19490.96943.81311.5304

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 104.037 H1 O3 H5 102.312
H1 O3 H6 102.312 O2 H1 O3 165.221
H5 O3 H6 104.258
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability