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

using model chemistry: MP2=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-152.473925
Energy at 298.15K-152.476725
HF Energy-152.061259
Counterpoise corrected energy-152.473925
CP Energy at 298.15K-152.476725
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.685499
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 MP2=FULL/cc-pVDZ
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' 3942 3747 76.16      
2 A' 3839 3649 15.73      
3 A' 3786 3599 231.22      
4 A' 1714 1629 50.08      
5 A' 1674 1591 64.64      
6 A' 405 385 42.90      
7 A' 196 186 38.03      
8 A' 153 145 292.36      
9 A" 3954 3758 60.80      
10 A" 670 636 120.46      
11 A" 175 166 114.75      
12 A" 82 78 72.72      

Unscaled Zero Point Vibrational Energy (zpe) 10295.1 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 9784.5 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 MP2=FULL/cc-pVDZ
ABC
6.70647 0.21756 0.21693

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.088 0.539 0.000
O2 0.008 1.506 0.000
O3 0.008 -1.401 0.000
H4 0.931 1.781 0.000
H5 -0.570 -1.582 0.753
H6 -0.570 -1.582 -0.753

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97011.94171.50122.34492.3449
O20.97012.90670.96363.23023.2302
O31.94172.90673.31340.96640.9664
H41.50120.96363.31343.75913.7591
H52.34493.23020.96643.75911.5061
H62.34493.23020.96643.75911.5061

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 101.852 H1 O3 H5 102.223
H1 O3 H6 102.223 O2 H1 O3 172.867
H5 O3 H6 102.379
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability