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

using model chemistry: HF/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/cc-pVDZ
 hartrees
Energy at 0K-152.063289
Energy at 298.15K-152.065982
HF Energy-152.063289
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.403618
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 HF/cc-pVDZ
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' 4188 3802 105.73      
2 A' 4108 3730 28.69      
3 A' 4073 3698 198.97      
4 A' 1803 1637 76.05      
5 A' 1772 1609 89.22      
6 A' 348 316 101.25      
7 A' 173 157 14.65      
8 A' 142 129 283.17      
9 A" 4205 3818 93.03      
10 A" 608 552 180.04      
11 A" 154 140 47.15      
12 A" 119 108 132.06      

Unscaled Zero Point Vibrational Energy (zpe) 10846.2 cm-1
Scaled (by 0.908) Zero Point Vibrational Energy (zpe) 9848.3 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 HF/cc-pVDZ
ABC
7.44819 0.20402 0.20398

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.023 0.611 0.000
O2 -0.001 1.561 0.000
O3 -0.001 -1.423 0.000
H4 0.909 1.820 0.000
H5 -0.461 -1.770 0.752
H6 -0.461 -1.770 -0.752

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.95042.03421.49832.54362.5436
O20.95042.98420.94583.44593.4459
O32.03422.98423.36780.94730.9473
H41.49830.94583.36783.91503.9150
H52.54363.44590.94733.91501.5040
H62.54363.44590.94733.91501.5040

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 104.403 H1 O3 H5 111.845
H1 O3 H6 111.845 O2 H1 O3 177.869
H5 O3 H6 105.088
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.153      
2 O -0.330      
3 O -0.284      
4 H 0.139      
5 H 0.161      
6 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.041 -2.968 0.000 2.969
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.010 6.314 0.000
y 6.314 -11.498 0.000
z 0.000 0.000 -11.097
Traceless
 xyz
x 0.287 6.314 0.000
y 6.314 -0.444 0.000
z 0.000 0.000 0.157
Polar
3z2-r20.314
x2-y20.488
xy6.314
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.447 0.301 0.000
y 0.301 1.738 0.000
z 0.000 0.000 1.406


<r2> (average value of r2) Å2
<r2> 55.027
(<r2>)1/2 7.418