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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-152.929384
Energy at 298.15K-152.932142
HF Energy-152.929384
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.645174
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/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' 3870 3742 62.77      
2 A' 3794 3668 10.20      
3 A' 3689 3566 292.75      
4 A' 1663 1607 46.58      
5 A' 1637 1582 83.00      
6 A' 384 372 50.41      
7 A' 188 181 76.84      
8 A' 151 146 226.21      
9 A" 3892 3763 67.97      
10 A" 644 622 108.13      
11 A" 152 147 117.19      
12 A" 104 100 61.34      

Unscaled Zero Point Vibrational Energy (zpe) 10083.7 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 9747.9 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/cc-pVTZ
ABC
6.95689 0.21562 0.21543

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.061 0.554 0.000
O2 0.007 1.520 0.000
O3 0.007 -1.410 0.000
H4 0.923 1.814 0.000
H5 -0.551 -1.622 0.758
H6 -0.551 -1.622 -0.758

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.96741.96521.52592.38412.3841
O20.96742.93030.96113.27983.2798
O31.96522.93033.35150.96510.9651
H41.52590.96113.35153.81443.8144
H52.38413.27980.96513.81441.5160
H62.38413.27980.96513.81441.5160

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 104.603 H1 O3 H5 103.582
H1 O3 H6 103.582 O2 H1 O3 175.229
H5 O3 H6 103.513
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/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
  -0.191 -2.508 0.000 2.515
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.375 6.210 0.000
y 6.210 -12.951 0.000
z 0.000 0.000 -11.651
Traceless
 xyz
x 0.926 6.210 0.000
y 6.210 -1.438 0.000
z 0.000 0.000 0.512
Polar
3z2-r21.024
x2-y21.576
xy6.210
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.126 0.282 0.000
y 0.282 2.613 0.000
z 0.000 0.000 2.024


<r2> (average value of r2) Å2
<r2> 52.972
(<r2>)1/2 7.278