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

using model chemistry: B3LYPultrafine_cp_opt/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine_cp_opt/6-311+G(3df,2pd)
 hartrees
Energy at 0K-152.935524
Energy at 298.15K-152.938278
Nuclear repulsion energy36.425447
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 B3LYPultrafine_cp_opt/6-311+G(3df,2pd)
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 3897 3780 85.61      
2 A 3819 3704 13.71      
3 A 3712 3600 325.44      
4 A 1648 1599 41.15      
5 A 1629 1580 91.70      
6 A 360 350 57.02      
7 A 183 178 204.36      
8 A 154 150 92.76      
9 A 3915 3798 84.96      
10 A 619 601 108.27      
11 A 152 147 37.64      
12 A 130 126 139.69      

Unscaled Zero Point Vibrational Energy (zpe) 10108.9 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 9805.6 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 B3LYPultrafine_cp_opt/6-311+G(3df,2pd)
ABC
7.24464 0.21068 0.21059

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.712 -0.034 -0.089
O2 -1.670 0.100 -0.112
O3 1.250 -0.071 0.086
H4 -2.025 -0.670 -0.563
H5 1.645 0.700 -0.332
H6 1.512 -0.025 1.010
X7 -1.066 -0.804 -0.540
X8 1.907 0.746 0.593

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6 X7 X8
H10.96831.97001.53372.48062.48040.95982.8162
O20.96832.93220.95983.37683.37641.16863.7029
O31.97002.93223.39180.96150.96152.50881.1642
H41.53370.95983.39183.92423.92390.96834.3356
H52.48063.37680.96153.92421.53063.10760.9615
H62.48043.37640.96153.92391.53063.10730.9615
X70.95981.16862.50880.96833.10763.10733.5390
X82.81623.70291.16424.33560.96150.96153.5390

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 105.390 H1 O3 H5 110.846
H1 O3 H6 110.825 O2 H1 O3 172.148
H5 O3 H6 105.485
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability