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

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-152.929382
Energy at 298.15K-152.932092
HF Energy-152.929382
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.645540
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 B3LYP/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' 3871 3741 63.14      
2 A' 3794 3667 10.21      
3 A' 3689 3566 291.73      
4 A' 1662 1607 46.66      
5 A' 1636 1581 82.68      
6 A' 384 371 47.55      
7 A' 186 180 63.41      
8 A' 145 140 244.07      
9 A" 3892 3762 67.86      
10 A" 643 622 107.82      
11 A" 144 139 136.26      
12 A" 91 88 42.74      

Unscaled Zero Point Vibrational Energy (zpe) 10068.8 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 9732.5 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 B3LYP/cc-pVTZ
ABC
6.94943 0.21564 0.21544

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.089 0.545 0.000
O2 0.004 1.510 0.000
O3 0.004 -1.399 0.000
H4 0.908 1.834 0.000
H5 -0.532 -1.634 0.764
H6 -0.532 -1.634 -0.764

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.96891.94601.52742.39122.3912
O20.96892.90920.96053.27983.2798
O31.94602.90923.35730.96240.9624
H41.52740.96053.35733.83243.8324
H52.39123.27980.96243.83241.5275
H62.39123.27980.96243.83241.5275

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 104.682 H1 O3 H5 105.564
H1 O3 H6 105.564 O2 H1 O3 172.460
H5 O3 H6 105.048
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.227      
2 O -0.491      
3 O -0.416      
4 H 0.214      
5 H 0.233      
6 H 0.233      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.195 -2.480 0.000 2.487
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.368 6.218 0.000
y 6.218 -12.981 0.000
z 0.000 0.000 -11.652
Traceless
 xyz
x 0.949 6.218 0.000
y 6.218 -1.471 0.000
z 0.000 0.000 0.522
Polar
3z2-r21.044
x2-y21.613
xy6.218
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.127 0.281 0.000
y 0.281 2.612 0.000
z 0.000 0.000 2.024


<r2> (average value of r2) Å2
<r2> 52.968
(<r2>)1/2 7.278