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

using model chemistry: B3LYP/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-152.941657
Energy at 298.15K-152.944386
HF Energy-152.941657
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.533878
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/Def2TZVPP
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' 3884 3739 72.52      
2 A' 3805 3663 11.20      
3 A' 3699 3561 302.55      
4 A' 1653 1592 42.07      
5 A' 1632 1571 86.53      
6 A' 369 355 58.98      
7 A' 183 176 111.58      
8 A' 152 146 185.12      
9 A" 3905 3759 74.40      
10 A" 624 601 118.44      
11 A" 131 126 148.60      
12 A" 129 124 30.85      

Unscaled Zero Point Vibrational Energy (zpe) 10083.4 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 9706.3 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 B3LYP/Def2TZVPP
ABC
7.13642 0.21295 0.21294

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.105 0.552 0.000
O2 0.006 1.516 0.000
O3 0.006 -1.415 0.000
H4 0.904 1.857 0.000
H5 -0.553 -1.609 0.761
H6 -0.553 -1.609 -0.761

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.96881.96921.53042.38402.3840
O20.96882.93050.96073.26473.2647
O31.96922.93053.39300.96420.9642
H41.53040.96073.39303.83663.8366
H52.38403.26470.96423.83661.5221
H62.38403.26470.96423.83661.5221

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 104.971 H1 O3 H5 103.338
H1 O3 H6 103.338 O2 H1 O3 171.267
H5 O3 H6 104.244
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.218      
2 O -0.448      
3 O -0.386      
4 H 0.191      
5 H 0.212      
6 H 0.212      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.097 -2.651 0.000 2.653
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.758 6.331 0.000
y 6.331 -12.542 0.000
z 0.000 0.000 -11.852
Traceless
 xyz
x 0.440 6.331 0.000
y 6.331 -0.738 0.000
z 0.000 0.000 0.298
Polar
3z2-r20.596
x2-y20.785
xy6.331
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.189 0.250 0.000
y 0.250 2.684 0.000
z 0.000 0.000 2.115


<r2> (average value of r2) Å2
<r2> 53.655
(<r2>)1/2 7.325