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

using model chemistry: M06-2X/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/cc-pVTZ
 hartrees
Energy at 0K-152.860465
Energy at 298.15K-152.863352
HF Energy-152.860465
Nuclear repulsion energy36.799465
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 M06-2X/cc-pVTZ
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' 3957 3779 92.02      
2 A' 3865 3691 19.67      
3 A' 3790 3620 272.65      
4 A' 1645 1571 59.96      
5 A' 1624 1551 82.50      
6 A' 399 381 36.19      
7 A' 199 190 107.83      
8 A' 132 126 259.03      
9 A" 3965 3787 92.41      
10 A" 629 601 110.92      
11 A" 209 200 197.80      
12 A" 133 127 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 10273.7 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 9812.4 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 M06-2X/cc-pVTZ
ABC
6.96269 0.21825 0.21805

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.170 0.540 0.000
O2 0.004 1.491 0.000
O3 0.004 -1.402 0.000
H4 0.872 1.897 0.000
H5 -0.554 -1.572 0.763
H6 -0.554 -1.572 -0.763

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.96541.94931.52802.35892.3589
O20.96542.89330.95793.20523.2052
O31.94932.89333.41160.96030.9603
H41.52800.95793.41163.82713.8271
H52.35893.20520.96033.82711.5263
H62.35893.20520.96033.82711.5263

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 105.215 H1 O3 H5 103.006
H1 O3 H6 103.006 O2 H1 O3 165.258
H5 O3 H6 105.258
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.257      
2 O -0.552      
3 O -0.514      
4 H 0.253      
5 H 0.278      
6 H 0.278      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.203 -2.065 0.000 2.075
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.296 6.393 0.000
y 6.393 -13.073 0.000
z 0.000 0.000 -11.603
Traceless
 xyz
x 1.042 6.393 0.000
y 6.393 -1.623 0.000
z 0.000 0.000 0.581
Polar
3z2-r21.163
x2-y21.776
xy6.393
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.081 0.253 0.000
y 0.253 2.472 0.000
z 0.000 0.000 1.987


<r2> (average value of r2) Å2
<r2> 52.404
(<r2>)1/2 7.239