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

using model chemistry: LSDA/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 LSDA/cc-pVDZ
 hartrees
Energy at 0K-152.123511
Energy at 298.15K 
HF Energy-152.123511
Nuclear repulsion energy39.416826
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 LSDA/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' 3769 3728 47.55      
2 A' 3646 3606 27.14      
3 A' 3471 3433 231.32      
4 A' 1608 1591 72.70      
5 A' 1565 1548 66.94      
6 A' 651 644 104.38      
7 A' 355 352 237.72      
8 A' 197 195 250.91      
9 A" 3726 3685 53.96      
10 A" 821 812 37.61      
11 A" 231 229 256.63      
12 A" 217i 215i 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 9911.9 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 9802.8 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 LSDA/cc-pVDZ
ABC
7.60491 0.28717 0.28688

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.170 0.496 0.000
O2 0.005 1.465 0.000
O3 0.005 -1.375 0.000
H4 0.904 1.839 0.000
H5 -0.581 -1.528 0.767
H6 -0.581 -1.528 -0.767

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.98301.87871.53072.29112.2911
O20.98302.84060.97353.14513.1451
O31.87872.84063.33790.97720.9772
H41.53070.97353.33793.75933.7593
H52.29113.14510.97723.75931.5332
H62.29113.14510.97723.75931.5332

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 102.949 H1 O3 H5 102.027
H1 O3 H6 102.027 O2 H1 O3 165.327
H5 O3 H6 103.347
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.119      
2 O -0.348      
3 O -0.259      
4 H 0.159      
5 H 0.164      
6 H 0.164      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.293 0.818 0.000 0.869
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.749 3.780 0.000
y 3.780 -14.087 0.000
z 0.000 0.000 -11.564
Traceless
 xyz
x 1.076 3.780 0.000
y 3.780 -2.430 0.000
z 0.000 0.000 1.354
Polar
3z2-r22.708
x2-y22.338
xy3.780
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.633 0.247 0.000
y 0.247 2.567 0.000
z 0.000 0.000 1.552


<r2> (average value of r2) Å2
<r2> 41.704
(<r2>)1/2 6.458