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

using model chemistry: CCD/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/TZVP
 hartrees
Energy at 0K-152.571218
Energy at 298.15K-152.573976
HF Energy-152.119849
Counterpoise corrected energy-152.571218
CP Energy at 298.15K-152.573976
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.418332
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 CCD/TZVP
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' 3965 3759 80.95      
2 A' 3882 3680 9.97      
3 A' 3833 3633 198.37      
4 A' 1680 1592 50.19      
5 A' 1652 1566 72.12      
6 A' 358 339 141.92      
7 A' 179 170 152.27      
8 A' 162 153 120.97      
9 A" 3985 3778 61.33      
10 A" 621 589 186.73      
11 A" 152 144 143.85      
12 A" 126 120 42.99      

Unscaled Zero Point Vibrational Energy (zpe) 10296.9 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 9761.4 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 CCD/TZVP
ABC
7.61664 0.20943 0.20915

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.200 0.554 0.000
O2 0.004 1.498 0.000
O3 0.004 -1.413 0.000
H4 0.868 1.912 0.000
H5 -0.565 -1.575 0.757
H6 -0.565 -1.575 -0.757

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.96411.97651.51332.38542.3854
O20.96412.91070.95813.21543.2154
O31.97652.91073.43500.96110.9611
H41.51330.95813.43503.84493.8449
H52.38543.21540.96113.84491.5148
H62.38543.21540.96113.84491.5148

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 103.862 H1 O3 H5 103.083
H1 O3 H6 103.083 O2 H1 O3 162.582
H5 O3 H6 104.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability