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

using model chemistry: QCISD(TQ)=FULL/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 QCISD(TQ)=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-152.561283
Energy at 298.15K-152.564115
HF Energy-152.087440
Nuclear repulsion energy36.408951
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 QCISD(TQ)=FULL/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' 3875 3875        
2 A' 3782 3782        
3 A' 3713 3713        
4 A' 1663 1663        
5 A' 1640 1640        
6 A' 370 370        
7 A' 186 186        
8 A' 157 157        
9 A" 3894 3894        
10 A" 634 634        
11 A" 165 165        
12 A" 143 143        

Unscaled Zero Point Vibrational Energy (zpe) 10109.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10109.9 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 QCISD(TQ)=FULL/aug-cc-pVDZ
ABC
7.09915 0.21220 0.21213

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.101 0.557 0.000
O2 0.001 1.524 0.000
O3 0.001 -1.400 0.000
H4 0.906 1.858 0.000
H5 -0.509 -1.704 0.763
H6 -0.509 -1.704 -0.763

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97201.95951.52992.46372.4637
O20.97202.92370.96543.35633.3563
O31.95952.92373.38140.96690.9669
H41.52990.96543.38143.90863.9086
H52.46373.35630.96693.90861.5262
H62.46373.35630.96693.90861.5262

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 109.985
H1 O3 H6 109.985 O2 H1 O3 171.106
H5 O3 H6 104.225
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability