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

using model chemistry: CCSD(T)/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 CCSD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-152.556245
Energy at 298.15K-152.558988
HF Energy-152.087402
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.393320
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(T)/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' 3876 3731        
2 A' 3782 3640        
3 A' 3713 3574        
4 A' 1658 1596        
5 A' 1639 1578        
6 A' 355 342        
7 A' 183 176        
8 A' 147 141        
9 A" 3896 3750        
10 A" 630 606        
11 A" 145 140        
12 A" 131 126        

Unscaled Zero Point Vibrational Energy (zpe) 10077.8 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 9699.8 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(T)/aug-cc-pVDZ
ABC
7.10446 0.21194 0.21188

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.098 0.558 0.000
O2 0.001 1.525 0.000
O3 0.001 -1.400 0.000
H4 0.907 1.857 0.000
H5 -0.507 -1.709 0.763
H6 -0.507 -1.709 -0.763

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97231.96031.53032.46702.4670
O20.97232.92520.96563.36123.3612
O31.96032.92523.38080.96710.9671
H41.53030.96563.38083.91093.9109
H52.46703.36120.96713.91091.5266
H62.46703.36120.96713.91091.5266

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 104.305 H1 O3 H5 110.175
H1 O3 H6 110.175 O2 H1 O3 171.352
H5 O3 H6 104.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability