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

using model chemistry: SVWN/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at SVWN/6-31+G**
 hartrees
Energy at 0K-152.149423
Energy at 298.15K-152.152705
HF Energy-152.149423
Nuclear repulsion energy37.793715
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 SVWN/6-31+G**
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' 3828 3771 75.84      
2 A' 3730 3675 19.26      
3 A' 3444 3392 707.94      
4 A' 1560 1536 24.11      
5 A' 1540 1517 150.96      
6 A' 473 466 67.57      
7 A' 274 270 110.10      
8 A' 209 206 262.56      
9 A" 3853 3796 115.63      
10 A" 831 819 146.81      
11 A" 202 199 57.32      
12 A" 163 160 177.48      

Unscaled Zero Point Vibrational Energy (zpe) 10052.8 cm-1
Scaled (by 0.9851) Zero Point Vibrational Energy (zpe) 9903.0 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 SVWN/6-31+G**
ABC
7.06504 0.24753 0.24728

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.103 0.424 0.000
O2 -0.000 1.410 0.000
O3 -0.000 -1.288 0.000
H4 0.897 1.783 0.000
H5 -0.497 -1.592 0.781
H6 -0.497 -1.592 -0.781

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.99111.71491.57352.24412.2441
O20.99112.69750.97133.14173.1417
O31.71492.69753.19860.97410.9741
H41.57350.97133.19863.73403.7340
H52.24413.14170.97413.73401.5612
H62.24413.14170.97413.73401.5612

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 106.597 H1 O3 H5 110.061
H1 O3 H6 110.061 O2 H1 O3 170.585
H5 O3 H6 106.517
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.425      
2 O -0.794      
3 O -0.791      
4 H 0.359      
5 H 0.400      
6 H 0.400      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.028 -3.101 0.000 3.101
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.328 6.850 0.000
y 6.850 -12.821 0.000
z 0.000 0.000 -12.365
Traceless
 xyz
x 0.265 6.850 0.000
y 6.850 -0.475 0.000
z 0.000 0.000 0.210
Polar
3z2-r20.420
x2-y20.494
xy6.850
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.133 0.163 0.000
y 0.163 2.929 0.000
z 0.000 0.000 2.297


<r2> (average value of r2) Å2
<r2> 47.933
(<r2>)1/2 6.923