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

using model chemistry: HF/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 HF/Def2TZVPP
 hartrees
Energy at 0K-152.132800
Energy at 298.15K-152.135357
HF Energy-152.132800
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.172659
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 HF/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' 4213 3819 122.92      
2 A' 4127 3741 21.65      
3 A' 4088 3705 186.18      
4 A' 1770 1604 74.73      
5 A' 1752 1588 99.93      
6 A' 316 286 113.17      
7 A' 157 142 204.03      
8 A' 136 123 77.55      
9 A" 4225 3830 105.76      
10 A" 560 508 176.52      
11 A" 137 124 107.58      
12 A" 117 106 68.77      

Unscaled Zero Point Vibrational Energy (zpe) 10798.5 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 9787.7 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 HF/Def2TZVPP
ABC
7.89122 0.19675 0.19640

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.148 0.570 0.000
O2 0.005 1.505 0.000
O3 0.005 -1.415 0.000
H4 0.860 1.891 0.000
H5 -0.540 -1.590 0.749
H6 -0.540 -1.590 -0.749

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.94591.99071.50112.38732.3873
O20.94592.92060.93893.23063.2306
O31.99072.92063.41560.94200.9420
H41.50110.93893.41563.82623.8262
H52.38733.23060.94203.82621.4971
H62.38733.23060.94203.82621.4971

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 105.575 H1 O3 H5 103.082
H1 O3 H6 103.082 O2 H1 O3 167.176
H5 O3 H6 105.240
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.255      
2 O -0.492      
3 O -0.460      
4 H 0.220      
5 H 0.238      
6 H 0.238      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.211 -3.008 0.000 3.015
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.835 6.288 0.000
y 6.288 -10.875 0.000
z 0.000 0.000 -11.494
Traceless
 xyz
x -0.650 6.288 0.000
y 6.288 0.790 0.000
z 0.000 0.000 -0.139
Polar
3z2-r2-0.279
x2-y2-0.960
xy6.288
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.909 0.191 0.000
y 0.191 2.268 0.000
z 0.000 0.000 1.914


<r2> (average value of r2) Å2
<r2> 57.031
(<r2>)1/2 7.552