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

using model chemistry: LSDA/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 LSDA/6-31G
 hartrees
Energy at 0K-152.055125
Energy at 298.15K 
HF Energy-152.055125
Nuclear repulsion energy38.098866
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 LSDA/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' 3686 3612 33.37      
2 A' 3587 3514 0.53      
3 A' 3255 3189 558.87      
4 A' 1582 1550 59.57      
5 A' 1538 1507 122.31      
6 A' 501 491 96.22      
7 A' 310 304 24.82      
8 A' 147 144 463.88      
9 A" 3757 3681 65.55      
10 A" 905 886 229.43      
11 A" 178 175 260.49      
12 A" 55i 53i 3.04      

Unscaled Zero Point Vibrational Energy (zpe) 9696.3 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 9499.4 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 LSDA/6-31G
ABC
7.10350 0.25882 0.25783

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.094 0.377 0.000
O2 -0.004 1.378 0.000
O3 -0.004 -1.254 0.000
H4 0.882 1.798 0.000
H5 -0.456 -1.583 0.807
H6 -0.456 -1.583 -0.807

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H11.00551.63351.62512.18942.1894
O21.00552.63130.98043.10143.1014
O31.63352.63133.17790.98170.9817
H41.62510.98043.17793.72433.7243
H52.18943.10140.98173.72431.6141
H62.18943.10140.98173.72431.6141

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 109.820 H1 O3 H5 111.227
H1 O3 H6 111.227 O2 H1 O3 170.973
H5 O3 H6 110.598
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.380      
2 O -0.814      
3 O -0.723      
4 H 0.345      
5 H 0.406      
6 H 0.406      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.037 -3.760 0.000 3.760
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.732 6.930 0.000
y 6.930 -11.413 0.000
z 0.000 0.000 -11.141
Traceless
 xyz
x -0.455 6.930 0.000
y 6.930 0.023 0.000
z 0.000 0.000 0.432
Polar
3z2-r20.863
x2-y2-0.319
xy6.930
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.337 0.566 0.000
y 0.566 1.970 0.000
z 0.000 0.000 1.275


<r2> (average value of r2) Å2
<r2> 45.785
(<r2>)1/2 6.766