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

using model chemistry: B2PLYP=FULL/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-152.752059
Energy at 298.15K-152.754732
HF Energy-152.594859
Nuclear repulsion energy36.903793
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(2df,p)
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' 3929 3929 67.85      
2 A' 3834 3834 11.90      
3 A' 3753 3753 266.11      
4 A' 1712 1712 55.97      
5 A' 1679 1679 79.56      
6 A' 428 428 37.39      
7 A' 215 215 130.69      
8 A' 149 149 196.70      
9 A" 3941 3941 60.73      
10 A" 648 648 89.75      
11 A" 165 165 143.63      
12 A" 9 9 38.82      

Unscaled Zero Point Vibrational Energy (zpe) 10230.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10230.7 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(2df,p)
ABC
6.78488 0.22039 0.21989

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.143 0.529 0.000
O2 0.007 1.486 0.000
O3 0.007 -1.404 0.000
H4 0.895 1.845 0.000
H5 -0.574 -1.514 0.757
H6 -0.574 -1.514 -0.757

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.96611.93841.51502.29432.2943
O20.96612.89000.95813.14793.1479
O31.93842.89003.36810.96090.9609
H41.51500.95813.36813.74333.7433
H52.29433.14790.96093.74331.5148
H62.29433.14790.96093.74331.5148

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 103.872 H1 O3 H5 99.000
H1 O3 H6 99.000 O2 H1 O3 167.839
H5 O3 H6 104.033
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability