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

using model chemistry: B2PLYP=FULLultrafine/aug-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 B2PLYP=FULLultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-152.768956
Energy at 298.15K 
HF Energy-152.623615
Nuclear repulsion energy36.512606
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=FULLultrafine/aug-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' 3896 3749 98.79      
2 A' 3803 3660 10.16      
3 A' 3702 3562 303.31      
4 A' 1647 1585 34.80      
5 A' 1628 1567 87.80      
6 A' 359 346 51.85      
7 A' 184 177 135.50      
8 A' 153 147 146.89      
9 A" 3918 3770 82.70      
10 A" 634 610 92.70      
11 A" 153 148 39.11      
12 A" 130 125 130.67      

Unscaled Zero Point Vibrational Energy (zpe) 10103.9 cm-1
Scaled (by 0.9623) Zero Point Vibrational Energy (zpe) 9723.0 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=FULLultrafine/aug-cc-pVDZ
ABC
7.17680 0.21370 0.21369

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.101 0.552 0.000
O2 -0.000 1.518 0.000
O3 -0.000 -1.393 0.000
H4 0.900 1.860 0.000
H5 -0.499 -1.706 0.764
H6 -0.499 -1.706 -0.764

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97111.94841.53262.45822.4582
O20.97112.91160.96293.35063.3506
O31.94842.91163.37570.96460.9646
H41.53260.96293.37573.90593.9059
H52.45823.35060.96463.90591.5284
H62.45823.35060.96463.90591.5284

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 104.830 H1 O3 H5 110.498
H1 O3 H6 110.498 O2 H1 O3 171.069
H5 O3 H6 104.796
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability