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

using model chemistry: B3LYP/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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-152.854444
Energy at 298.15K 
HF Energy-152.854444
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.787776
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-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' 3818 3703 44.98      
2 A' 3747 3634 11.88      
3 A' 3647 3538 282.69      
4 A' 1688 1637 47.19      
5 A' 1652 1602 63.42      
6 A' 410 398 36.83      
7 A' 213 207 52.99      
8 A' 149 145 268.69      
9 A" 3846 3730 49.11      
10 A" 680 660 104.56      
11 A" 185 179 128.40      
12 A" 39i 38i 50.90      

Unscaled Zero Point Vibrational Energy (zpe) 9997.5 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 9697.5 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-pVDZ
ABC
6.62101 0.22155 0.22093

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.094 0.517 0.000
O2 0.008 1.490 0.000
O3 0.008 -1.392 0.000
H4 0.930 1.784 0.000
H5 -0.575 -1.543 0.761
H6 -0.575 -1.543 -0.761

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97631.91131.51802.29572.2957
O20.97632.88180.96813.18043.1804
O31.91132.88183.30750.97010.9701
H41.51800.96813.30753.73003.7300
H52.29573.18040.97013.73001.5217
H62.29573.18040.97013.73001.5217

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 102.656 H1 O3 H5 100.504
H1 O3 H6 100.504 O2 H1 O3 172.360
H5 O3 H6 103.322
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.105      
2 O -0.307      
3 O -0.228      
4 H 0.124      
5 H 0.153      
6 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.350 -2.325 0.000 2.351
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.664 5.964 0.000
y 5.964 -13.568 0.000
z 0.000 0.000 -11.279
Traceless
 xyz
x 1.759 5.964 0.000
y 5.964 -2.596 0.000
z 0.000 0.000 0.837
Polar
3z2-r21.675
x2-y22.904
xy5.964
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.702 0.357 0.000
y 0.357 2.068 0.000
z 0.000 0.000 1.528


<r2> (average value of r2) Å2
<r2> 51.556
(<r2>)1/2 7.180