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

using model chemistry: B3LYPultrafine/aug-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 B3LYPultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-152.896795
Energy at 298.15K-152.899576
HF Energy-152.896795
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.503147
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/aug-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' 3874 3759 87.53      
2 A' 3789 3677 10.71      
3 A' 3672 3563 337.94      
4 A' 1638 1589 37.07      
5 A' 1617 1569 87.28      
6 A' 359 348 52.26      
7 A' 183 178 140.53      
8 A' 155 150 136.99      
9 A" 3896 3780 82.27      
10 A" 634 615 93.04      
11 A" 157 153 16.92      
12 A" 131 127 149.80      

Unscaled Zero Point Vibrational Energy (zpe) 10051.8 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 9754.3 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 B3LYPultrafine/aug-cc-pVDZ
ABC
7.17051 0.21390 0.21385

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.127 0.548 0.000
O2 0.006 1.514 0.000
O3 0.006 -1.416 0.000
H4 0.899 1.878 0.000
H5 -0.558 -1.604 0.764
H6 -0.558 -1.604 -0.764

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97311.96821.53722.38402.3840
O20.97312.92990.96443.25873.2587
O31.96822.92993.41310.96770.9677
H41.53720.96443.41313.85053.8505
H52.38403.25870.96773.85051.5279
H62.38403.25870.96773.85051.5279

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 105.015 H1 O3 H5 103.258
H1 O3 H6 103.258 O2 H1 O3 169.275
H5 O3 H6 104.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.135      
2 O -0.197      
3 O -0.228      
4 H 0.062      
5 H 0.114      
6 H 0.114      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.065 -2.657 0.000 2.657
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.215 6.161 0.000
y 6.161 -12.576 0.000
z 0.000 0.000 -12.291
Traceless
 xyz
x 0.219 6.161 0.000
y 6.161 -0.323 0.000
z 0.000 0.000 0.105
Polar
3z2-r20.209
x2-y20.361
xy6.161
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.708 0.171 0.000
y 0.171 3.249 0.000
z 0.000 0.000 2.753


<r2> (average value of r2) Å2
<r2> 53.730
(<r2>)1/2 7.330