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

using model chemistry: B3LYPultrafine_cp_opt/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYPultrafine_cp_opt/6-31G*
 hartrees
Energy at 0K-152.827105
Energy at 298.15K-152.830035
Nuclear repulsion energy36.471211
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 B3LYPultrafine_cp_opt/6-31G*
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 3811 3651 47.96      
2 A 3730 3573 6.30      
3 A 3628 3476 258.08      
4 A 1747 1674 67.35      
5 A 1711 1639 92.63      
6 A 406 389 79.09      
7 A 215 206 173.13      
8 A 171 164 159.06      
9 A 3847 3685 39.46      
10 A 675 647 163.86      
11 A 173 166 2.89      
12 A 133 128 193.22      

Unscaled Zero Point Vibrational Energy (zpe) 10123.5 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 9698.3 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 B3LYPultrafine_cp_opt/6-31G*
ABC
6.95694 0.21463 0.21445

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.075 0.544 0.000
O2 0.002 1.518 0.000
O3 0.002 -1.393 0.000
H4 0.923 1.815 0.000
H5 -0.518 -1.684 0.765
H6 -0.518 -1.684 -0.765
X7 0.996 0.841 0.000
X8 -1.038 -1.975 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6 X7 X8
H10.97691.93831.52812.42912.42910.96792.7542
O20.97692.91100.96793.33313.33311.20293.6450
O31.93832.91103.33760.96940.96942.44511.1918
H41.52810.96793.33763.86083.86080.97694.2677
H52.42913.33310.96943.86081.52913.04190.9694
H62.42913.33310.96943.86081.52913.04190.9694
X70.96791.20292.44510.97693.04193.04193.4741
X82.75423.64501.19184.26770.96940.96943.4741

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 103.579 H1 O3 H5 108.690
H1 O3 H6 108.690 O2 H1 O3 173.551
H5 O3 H6 104.133
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.382      
2 O -0.593      
3 O -0.556      
4 H 0.229      
5 H 0.269      
6 H 0.269      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.195 -2.942 0.000 2.948
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.045 6.551 0.000
y 6.551 -12.266 0.000
z 0.000 0.000 -11.397
Traceless
 xyz
x 0.786 6.551 0.000
y 6.551 -1.045 0.000
z 0.000 0.000 0.259
Polar
3z2-r20.517
x2-y21.221
xy6.551
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.712 0.163 0.000
y 0.163 0.510 0.000
z 0.000 0.000 1.100


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000