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

using model chemistry: CCSD=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 CCSD=FULL/6-31G*
 hartrees
Energy at 0K-152.427103
Energy at 298.15K-152.429907
HF Energy-152.028370
Nuclear repulsion energy36.313823
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 CCSD=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' 3859 3665 91.56      
2 A' 3750 3562 12.43      
3 A' 3726 3539 150.03      
4 A' 1778 1689 84.78      
5 A' 1744 1656 88.43      
6 A' 420 399 49.60      
7 A' 204 194 163.36      
8 A' 146 139 243.59      
9 A" 3868 3674 47.99      
10 A" 653 621 169.05      
11 A" 158 150 153.67      
12 A" 104 98 70.35      

Unscaled Zero Point Vibrational Energy (zpe) 10204.4 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 9692.1 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 CCSD=FULL/6-31G*
ABC
6.70672 0.21124 0.21086

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.045 0.558 0.000
O2 0.008 1.529 0.000
O3 0.008 -1.416 0.000
H4 0.936 1.805 0.000
H5 -0.555 -1.634 0.763
H6 -0.555 -1.634 -0.763

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97161.97411.53312.39772.3977
O20.97162.94470.96863.30253.3025
O31.97412.94473.35190.97300.9730
H41.53310.96863.35193.82583.8258
H52.39773.30250.97303.82581.5259
H62.39773.30250.97303.82581.5259

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 104.408 H1 O3 H5 103.621
H1 O3 H6 103.621 O2 H1 O3 176.787
H5 O3 H6 103.270
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability