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

using model chemistry: B3LYPultrafine/6-311+G(3df,2pd)

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/6-311+G(3df,2pd)
 hartrees
Energy at 0K-152.935996
Energy at 298.15K-152.938832
Counterpoise corrected energy-152.935524
CP Energy at 298.15K-152.938278
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.510854
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/6-311+G(3df,2pd)
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 3896 3780 85.24      
2 A 3816 3701 13.89      
3 A 3707 3595 333.38      
4 A 1652 1602 41.98      
5 A 1629 1580 92.54      
6 A 378 367 54.33      
7 A 192 186 222.34      
8 A 161 156 68.39      
9 A 3912 3795 85.78      
10 A 639 620 113.07      
11 A 162 157 6.60      
12 A 136 132 169.06      

Unscaled Zero Point Vibrational Energy (zpe) 10140.4 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 9836.1 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/6-311+G(3df,2pd)
ABC
7.17160 0.21256 0.21254

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311+G(3df,2pd)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.087 0.557 0.000
O2 0.001 1.522 0.000
O3 0.001 -1.399 0.000
H4 0.900 1.858 0.000
H5 -0.499 -1.700 0.765
H6 -0.499 -1.700 -0.765
X7 0.986 0.893 0.000
X8 -0.998 -2.000 0.000

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6 X7 X8
H10.96881.95871.53372.45442.45440.95992.7785
O20.96882.92170.95993.34933.34931.16943.6616
O31.95872.92173.37910.96180.96182.49521.1655
H41.53370.95993.37913.89873.89870.96884.2999
H52.45443.34930.96183.89871.53023.08440.9618
H62.45443.34930.96183.89871.53023.08440.9618
X70.95991.16942.49520.96883.08443.08443.5084
X82.77853.66161.16554.29990.96180.96183.5084

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 105.353 H1 O3 H5 109.576
H1 O3 H6 109.576 O2 H1 O3 172.370
H5 O3 H6 105.409
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.316      
2 O -0.479      
3 O -0.358      
4 H 0.170      
5 H 0.176      
6 H 0.176      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.076 -2.611 0.000 2.612
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.747 6.347 0.000
y 6.347 -13.192 0.000
z 0.000 0.000 -12.236
Traceless
 xyz
x 0.967 6.347 0.000
y 6.347 -1.200 0.000
z 0.000 0.000 0.233
Polar
3z2-r20.466
x2-y21.445
xy6.347
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.592 0.127 0.000
y 0.127 3.163 0.000
z 0.000 0.000 2.648


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000