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

using model chemistry: B3LYPultrafine_cp/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/6-31G*
 hartrees
Energy at 0K-192.132216
Energy at 298.15K-192.124292
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/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' 3721 3565 9.19      
2 A' 3615 3464 388.62      
3 A' 3110 2979 56.13      
4 A' 2980 2854 82.14      
5 A' 1708 1636 81.31      
6 A' 1545 1480 1.68      
7 A' 1514 1450 8.45      
8 A' 1466 1404 56.82      
9 A' 1135 1087 10.36      
10 A' 1094 1048 102.46      
11 A' 336 322 289.19      
12 A' 193 185 2.39      
13 A' 66 64 55.04      
14 A" 3837 3676 46.31      
15 A" 3015 2888 101.20      
16 A" 1525 1461 0.65      
17 A" 1187 1137 0.92      
18 A" 743 712 125.50      
19 A" 219 210 14.78      
20 A" 103 99 48.18      
21 A" 37 35 31.18      

Unscaled Zero Point Vibrational Energy (zpe) 16573.7 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 15877.6 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/6-31G*
ABC
1.21746 0.12546 0.11817

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.273 0.000
O2 -0.921 -0.052 0.000
O3 1.576 1.339 0.000
C4 -0.882 -1.464 0.000
H5 1.371 1.900 0.765
H6 1.371 1.900 -0.765
H7 -1.918 -1.821 0.000
H8 -0.383 -1.880 -0.891
H9 -0.383 -1.880 0.891

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.97691.90261.94832.26122.26122.83922.36132.3613
O20.97692.85851.41243.10673.10672.03002.10342.1034
O31.90262.85853.72850.97020.97024.71063.87233.8723
C41.94831.41243.72854.12094.12091.09491.10291.1029
H52.26123.10670.97024.12091.52995.02464.48434.1692
H62.26123.10670.97024.12091.52995.02464.16924.4843
H72.83922.03004.71061.09495.02465.02461.77551.7755
H82.36132.10343.87231.10294.48434.16921.77551.7822
H92.36132.10343.87231.10294.16924.48431.77551.7822

picture of methanol water dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.409      
2 O -0.660      
3 O -0.754      
4 C -0.195      
5 H 0.409      
6 H 0.409      
7 H 0.146      
8 H 0.118      
9 H 0.118      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.414 1.739 0.000 2.241
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


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