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

using model chemistry: B3LYPultrafine/6-311G*

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/6-311G*
 hartrees
Energy at 0K-152.881613
Energy at 298.15K 
HF Energy-152.881613
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy37.144530
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/6-311G*
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' 3846 3717 36.84      
2 A' 3771 3644 2.64      
3 A' 3650 3527 253.18      
4 A' 1742 1683 76.06      
5 A' 1713 1656 111.99      
6 A' 443 428 77.58      
7 A' 227 219 44.97      
8 A' 145 140 381.75      
9 A" 3882 3751 38.26      
10 A" 746 720 185.57      
11 A" 192 186 202.00      
12 A" 22i 21i 39.12      

Unscaled Zero Point Vibrational Energy (zpe) 10166.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 9823.9 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/6-311G*
ABC
6.93446 0.22736 0.22730

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.114 0.537 0.000
O2 0.005 1.500 0.000
O3 0.005 -1.404 0.000
H4 0.895 1.868 0.000
H5 -0.546 -1.588 0.772
H6 -0.546 -1.588 -0.772

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.96951.94351.54352.35542.3554
O20.96952.90380.96323.23083.2308
O31.94352.90383.39050.96650.9665
H41.54350.96323.39053.82353.8235
H52.35543.23080.96653.82351.5444
H62.35543.23080.96653.82351.5444

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 105.998 H1 O3 H5 102.865
H1 O3 H6 102.865 O2 H1 O3 170.337
H5 O3 H6 106.058
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.419      
2 O -0.855      
3 O -0.794      
4 H 0.385      
5 H 0.423      
6 H 0.423      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.241 -2.661 0.000 2.672
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.255 6.999 0.000
y 6.999 -13.219 0.000
z 0.000 0.000 -11.499
Traceless
 xyz
x 1.104 6.999 0.000
y 6.999 -1.842 0.000
z 0.000 0.000 0.738
Polar
3z2-r21.477
x2-y21.964
xy6.999
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.623 0.391 0.000
y 0.391 2.084 0.000
z 0.000 0.000 1.587


<r2> (average value of r2) Å2
<r2> 50.709
(<r2>)1/2 7.121