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

using model chemistry: B3LYPultrafine/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-152.939679
Energy at 298.15K-152.942465
HF Energy-152.939679
Counterpoise corrected energy-152.939596
CP Energy at 298.15K-152.942371
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy36.514833
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/aug-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 3890 3764 84.44      
2 A 3870 3745 85.10      
3 A 3791 3668 10.41      
4 A 3674 3555 335.86      
5 A 1647 1594 38.60      
6 A 1628 1575 92.04      
7 A 626 606 94.48      
8 A 363 351 51.01      
9 A 187 180 190.99      
10 A 157 152 88.73      
11 A 156 151 19.21      
12 A 130 126 147.88      

Unscaled Zero Point Vibrational Energy (zpe) 10059.4 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 9732.5 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 B3LYPultrafine/aug-cc-pVTZ
ABC
7.22607 0.21307 0.21297

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.109 0.551 0.000
O2 0.006 1.516 0.000
O3 0.006 -1.416 0.000
H4 0.902 1.866 0.000
H5 -0.553 -1.611 0.763
H6 -0.553 -1.611 -0.763

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 H6
H10.97031.96961.53532.38592.3859
O20.97032.93170.96183.26643.2664
O31.96962.93173.40160.96520.9652
H41.53530.96183.40163.84493.8449
H52.38593.26640.96523.84491.5253
H62.38593.26640.96523.84491.5253

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 105.236 H1 O3 H5 103.411
H1 O3 H6 103.411 O2 H1 O3 170.914
H5 O3 H6 104.394
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.263      
2 O -0.418      
3 O -0.356      
4 H 0.152      
5 H 0.179      
6 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.625 0.010 0.153 2.630
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.511 0.220 6.102
y 0.220 -12.217 -0.019
z 6.102 -0.019 -13.161
Traceless
 xyz
x 1.178 0.220 6.102
y 0.220 0.119 -0.019
z 6.102 -0.019 -1.297
Polar
3z2-r2-2.594
x2-y20.706
xy0.220
xz6.102
yz-0.019


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.317 0.004 0.110
y 0.004 2.817 -0.002
z 0.110 -0.002 2.757


<r2> (average value of r2) Å2
<r2> 53.862
(<r2>)1/2 7.339