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

using model chemistry: PBEPBEultrafine/6-311+G(3df,2pd)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/6-311+G(3df,2pd)
 hartrees
Energy at 0K-152.764808
Energy at 298.15K-152.767691
Counterpoise corrected energy-152.764239
CP Energy at 298.15K-152.767049
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.565775
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 PBEPBEultrafine/6-311+G(3df,2pd)
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 3796 3758 66.35      
2 A 3716 3679 10.21      
3 A 3560 3524 390.39      
4 A 1616 1600 30.53      
5 A 1594 1578 86.66      
6 A 396 392 39.20      
7 A 199 197 207.98      
8 A 166 164 80.07      
9 A 3815 3777 73.47      
10 A 660 653 94.60      
11 A 167 165 0.02      
12 A 133 132 170.71      

Unscaled Zero Point Vibrational Energy (zpe) 9908.3 cm-1
Scaled (by 0.99) Zero Point Vibrational Energy (zpe) 9809.2 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 PBEPBEultrafine/6-311+G(3df,2pd)
ABC
6.91499 0.21712 0.21694

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-311+G(3df,2pd)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.107 0.531 0.000
O2 0.003 1.505 0.000
O3 0.003 -1.390 0.000
H4 0.909 1.846 0.000
H5 -0.533 -1.645 0.767
H6 -0.533 -1.645 -0.767
X7 1.012 0.872 0.000
X8 -1.069 -1.900 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6 X7 X8
H10.97931.92411.54042.39432.39430.96792.7000
O20.97932.89520.96793.28603.28601.19133.5694
O31.92412.89523.36060.96990.96992.47731.1867
H41.54040.96793.36063.85413.85410.97934.2357
H52.39433.28600.96993.85411.53453.05160.9699
H62.39433.28600.96993.85411.53453.05160.9699
X70.96791.19132.47730.97933.05163.05163.4662
X82.70003.56941.18674.23570.96990.96993.4662

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 104.566 H1 O3 H5 106.979
H1 O3 H6 106.979 O2 H1 O3 170.847
H5 O3 H6 104.566
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.309      
2 O -0.456      
3 O -0.321      
4 H 0.151      
5 H 0.158      
6 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.161 -2.468 0.000 2.474
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.037 6.258 0.000
y 6.258 -13.297 0.000
z 0.000 0.000 -12.349
Traceless
 xyz
x 0.787 6.258 0.000
y 6.258 -1.104 0.000
z 0.000 0.000 0.318
Polar
3z2-r20.636
x2-y21.261
xy6.258
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.581 0.148 0.000
y 0.148 3.278 0.000
z 0.000 0.000 2.699


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