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All results from a given calculation for CH3OHH2O (methanol water dimer)

using model chemistry: B3LYPultrafine_cp_opt/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYPultrafine_cp_opt/6-31G*
 hartrees
Energy at 0K-192.132673
Energy at 298.15K-192.138026
Nuclear repulsion energy 
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_cp_opt/6-31G*
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' 3731 3574 5.35      
2 A' 3623 3471 381.60      
3 A' 3107 2977 58.55      
4 A' 2977 2852 82.95      
5 A' 1711 1639 79.31      
6 A' 1546 1481 1.97      
7 A' 1514 1450 9.58      
8 A' 1466 1404 56.74      
9 A' 1133 1085 13.21      
10 A' 1096 1050 103.80      
11 A' 289 277 248.39      
12 A' 186 178 13.81      
13 A' 83 80 36.35      
14 A" 3848 3686 40.42      
15 A" 3011 2884 105.24      
16 A" 1525 1461 0.54      
17 A" 1187 1137 0.93      
18 A" 738 707 156.92      
19 A" 229 219 0.10      
20 A" 106 102 0.25      
21 A" 66 63 70.91      

Unscaled Zero Point Vibrational Energy (zpe) 16585.0 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 15888.4 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_cp_opt/6-31G*
ABC
1.11355 0.12662 0.11812

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.363 0.000
O2 -0.970 0.246 0.000
O3 1.872 0.798 0.000
C4 -1.235 -1.140 0.000
H5 2.091 1.352 0.765
H6 2.091 1.352 -0.765
H7 -2.322 -1.267 0.000
H8 -0.836 -1.655 -0.891
H9 -0.836 -1.655 0.891

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.97661.92211.94532.43612.43612.83712.35912.3591
O20.97662.89491.41143.34283.34282.02932.10362.1036
O31.92212.89493.66180.96930.96934.67513.76133.7613
C41.94531.41143.66184.22544.22541.09511.10321.1032
H52.43613.34280.96934.22541.53005.18824.51124.1982
H62.43613.34280.96934.22541.53005.18824.19824.5112
H72.83712.02934.67511.09515.18825.18821.77551.7755
H82.35912.10363.76131.10324.51124.19821.77551.7819
H92.35912.10363.76131.10324.19824.51121.77551.7819

picture of methanol water dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 C4 107.698 H1 O3 H5 110.426
H1 O3 H6 110.426 O2 H1 O3 173.795
O2 C4 H7 107.443 O2 C4 H8 112.981
O2 C4 H9 112.981 H5 O3 H6 104.224
H7 C4 H8 107.737 H7 C4 H9 107.737
H8 C4 H9 107.721
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.775      
4 C 0.000      
5 H 0.387      
6 H 0.387      
7 H 0.000      
8 H 0.000      
9 H 0.000      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.834 1.210 0.000 3.081
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.196 7.486 0.000
y 7.486 -15.246 0.000
z 0.000 0.000 -17.878
Traceless
 xyz
x -0.635 7.486 0.000
y 7.486 2.291 0.000
z 0.000 0.000 -1.657
Polar
3z2-r2-3.313
x2-y2-1.950
xy7.486
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.464 -0.123 0.000
y -0.123 0.757 0.000
z 0.000 0.000 1.102


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