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

using model chemistry: B3LYP/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 B3LYP/aug-cc-pVDZ
 hartrees
Energy at 0K-152.896792
Energy at 298.15K-152.899560
HF Energy-152.896792
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.497914
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 B3LYP/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' 3874 3760 87.74      
2 A' 3789 3677 10.73      
3 A' 3672 3564 336.86      
4 A' 1637 1589 36.82      
5 A' 1617 1569 87.53      
6 A' 360 350 51.35      
7 A' 182 177 136.44      
8 A' 154 149 142.40      
9 A" 3896 3780 82.08      
10 A" 635 617 92.83      
11 A" 154 149 30.99      
12 A" 127 123 136.04      

Unscaled Zero Point Vibrational Energy (zpe) 10048.9 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 9751.4 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 B3LYP/aug-cc-pVDZ
ABC
7.16220 0.21379 0.21375

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.128 0.548 0.000
O2 0.006 1.514 0.000
O3 0.006 -1.416 0.000
H4 0.898 1.879 0.000
H5 -0.558 -1.603 0.764
H6 -0.558 -1.603 -0.764

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97311.96821.53732.38402.3840
O20.97312.92980.96443.25833.2583
O31.96822.92983.41350.96770.9677
H41.53730.96443.41353.85073.8507
H52.38403.25830.96773.85071.5280
H62.38403.25830.96773.85071.5280

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 105.015 H1 O3 H5 103.252
H1 O3 H6 103.252 O2 H1 O3 169.220
H5 O3 H6 104.280
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.134      
2 O -0.197      
3 O -0.228      
4 H 0.062      
5 H 0.114      
6 H 0.114      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.070 -2.642 0.000 2.643
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.206 6.170 0.000
y 6.170 -12.600 0.000
z 0.000 0.000 -12.292
Traceless
 xyz
x 0.241 6.170 0.000
y 6.170 -0.351 0.000
z 0.000 0.000 0.111
Polar
3z2-r20.221
x2-y20.395
xy6.170
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.708 0.172 0.000
y 0.172 3.249 0.000
z 0.000 0.000 2.753


<r2> (average value of r2) Å2
<r2> 53.750
(<r2>)1/2 7.331