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

using model chemistry: B3LYPultrafine_cp_opt/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-152.876420
Energy at 298.15K-152.879182
Nuclear repulsion energy36.352035
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/6-31+G**
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 3899 3758 92.74      
2 A 3805 3668 13.57      
3 A 3701 3567 312.91      
4 A 1629 1570 55.44      
5 A 1612 1554 116.41      
6 A 371 357 82.15      
7 A 189 182 207.81      
8 A 147 141 177.93      
9 A 3923 3782 81.61      
10 A 636 613 162.72      
11 A 156 150 157.86      
12 A 123 119 67.83      

Unscaled Zero Point Vibrational Energy (zpe) 10094.4 cm-1
Scaled (by 0.964) Zero Point Vibrational Energy (zpe) 9731.0 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/6-31+G**
ABC
7.19790 0.21088 0.21072

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.101 0.560 0.000
O2 -0.001 1.527 0.000
O3 -0.001 -1.403 0.000
H4 0.893 1.889 0.000
H5 -0.488 -1.719 0.772
H6 -0.488 -1.719 -0.772
X7 0.995 0.921 0.000
X8 -0.975 -2.034 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6 X7 X8
H10.97281.96581.54692.47692.47690.96412.8083
O20.97282.93060.96413.37183.37181.16563.6921
O31.96582.93063.41140.96580.96582.52921.1606
H41.54690.96413.41143.93923.93920.97284.3449
H52.47693.37180.96583.93921.54413.12500.9658
H62.47693.37180.96583.93921.54413.12500.9658
X70.96411.16562.52920.97283.12503.12503.5520
X82.80833.69211.16064.34490.96580.96583.5520

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 106.004 H1 O3 H5 110.624
H1 O3 H6 110.624 O2 H1 O3 170.988
H5 O3 H6 106.141
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.403      
2 O -0.662      
3 O -0.617      
4 H 0.273      
5 H 0.302      
6 H 0.302      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.021 -2.812 0.000 2.812
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.192 7.075 0.000
y 7.075 -12.547 0.000
z 0.000 0.000 -12.226
Traceless
 xyz
x 0.195 7.075 0.000
y 7.075 -0.338 0.000
z 0.000 0.000 0.143
Polar
3z2-r20.286
x2-y20.355
xy7.075
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.990 -0.002 0.000
y -0.002 0.992 0.000
z 0.000 0.000 1.166


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