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

using model chemistry: B3LYP_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 B3LYP_cp_opt/6-31G*
 hartrees
Energy at 0K-192.132673
Energy at 298.15K-192.138002
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 B3LYP_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 3583 5.32      
2 A' 3625 3481 381.92      
3 A' 3108 2985 58.50      
4 A' 2977 2859 82.94      
5 A' 1711 1643 79.35      
6 A' 1546 1484 1.99      
7 A' 1514 1454 9.47      
8 A' 1466 1407 56.91      
9 A' 1133 1088 13.16      
10 A' 1096 1053 103.82      
11 A' 289 278 248.70      
12 A' 186 178 13.60      
13 A' 83 80 36.63      
14 A" 3848 3695 40.33      
15 A" 3011 2892 105.23      
16 A" 1525 1464 0.54      
17 A" 1187 1140 0.93      
18 A" 738 709 156.78      
19 A" 226 217 0.12      
20 A" 105 101 0.37      
21 A" 57 55 70.99      

Unscaled Zero Point Vibrational Energy (zpe) 16580.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 15922.1 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 B3LYP_cp_opt/6-31G*
ABC
1.11479 0.12656 0.11809

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.362 0.000
O2 -0.969 0.243 0.000
O3 1.871 0.803 0.000
C4 -1.233 -1.143 0.000
H5 2.086 1.358 0.765
H6 2.086 1.358 -0.765
H7 -2.320 -1.271 0.000
H8 -0.834 -1.657 -0.891
H9 -0.834 -1.657 0.891

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.97661.92221.94532.43502.43502.83712.35912.3591
O20.97662.89491.41153.34123.34122.02932.10362.1036
O31.92222.89493.66320.96930.96934.67613.76313.7631
C41.94531.41153.66324.22554.22551.09511.10321.1032
H52.43503.34120.96934.22551.52985.18774.51214.1992
H62.43503.34120.96934.22551.52985.18774.19924.5121
H72.83712.02934.67611.09515.18775.18771.77551.7755
H82.35912.10363.76311.10324.51214.19921.77551.7818
H92.35912.10363.76311.10324.19924.51211.77551.7818

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 107.703 H1 O3 H5 110.331
H1 O3 H6 110.331 O2 H1 O3 173.692
O2 C4 H7 107.442 O2 C4 H8 112.979
O2 C4 H9 112.979 H5 O3 H6 104.200
H7 C4 H8 107.741 H7 C4 H9 107.741
H8 C4 H9 107.720
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_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
  2.822 1.218 0.000 3.074
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.258 7.478 0.000
y 7.478 -15.200 0.000
z 0.000 0.000 -17.879
Traceless
 xyz
x -0.718 7.478 0.000
y 7.478 2.368 0.000
z 0.000 0.000 -1.650
Polar
3z2-r2-3.300
x2-y2-2.058
xy7.478
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.469 -0.128 0.000
y -0.128 0.753 0.000
z 0.000 0.000 1.103


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