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

using model chemistry: B3LYP_cp_opt/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-192.176682
Energy at 298.15K-192.181754
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/6-31+G**
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' 3805 3669 10.11      
2 A' 3719 3586 396.17      
3 A' 3116 3004 42.87      
4 A' 2990 2883 85.37      
5 A' 1611 1554 94.24      
6 A' 1513 1459 3.19      
7 A' 1484 1431 9.37      
8 A' 1404 1353 39.82      
9 A' 1109 1070 15.99      
10 A' 1070 1031 112.12      
11 A' 252 243 272.64      
12 A' 152 147 14.48      
13 A' 69 67 53.75      
14 A" 3923 3783 79.76      
15 A" 3036 2927 77.17      
16 A" 1500 1446 1.91      
17 A" 1175 1133 0.31      
18 A" 672 648 157.21      
19 A" 186 179 0.93      
20 A" 82 79 21.30      
21 A" 56 54 53.09      

Unscaled Zero Point Vibrational Energy (zpe) 16461.5 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 15872.2 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/6-31+G**
ABC
1.14856 0.12081 0.11344

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.341 0.000
O2 -0.967 0.242 0.000
O3 1.926 0.801 0.000
C4 -1.295 -1.139 0.000
H5 2.155 1.334 0.772
H6 2.155 1.334 -0.772
H7 -2.386 -1.211 0.000
H8 -0.915 -1.657 -0.893
H9 -0.915 -1.657 0.893

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.97161.97981.96652.49532.49532.84632.37212.3721
O20.97162.94571.41963.39603.39602.03142.09942.0994
O31.97982.94573.75960.96580.96584.75783.86103.8610
C41.96651.41963.75964.31434.31431.09331.10001.1000
H52.49533.39600.96584.31431.54405.26254.59814.2879
H62.49533.39600.96584.31431.54405.26254.28794.5981
H72.84632.03144.75781.09335.26255.26251.77751.7775
H82.37212.09943.86101.10004.59814.28791.77751.7854
H92.37212.09943.86101.10004.28794.59811.77751.7854

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 109.211 H1 O3 H5 111.056
H1 O3 H6 111.056 O2 H1 O3 172.414
O2 C4 H7 107.167 O2 C4 H8 112.241
O2 C4 H9 112.241 H5 O3 H6 106.134
H7 C4 H8 108.275 H7 C4 H9 108.275
H8 C4 H9 108.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.708      
4 C 0.000      
5 H 0.354      
6 H 0.354      
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
  2.652 0.780 0.000 2.764
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.971 7.982 0.000
y 7.982 -16.374 0.000
z 0.000 0.000 -18.476
Traceless
 xyz
x -0.546 7.982 0.000
y 7.982 1.850 0.000
z 0.000 0.000 -1.304
Polar
3z2-r2-2.608
x2-y2-1.598
xy7.982
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.993 0.001 0.000
y 0.001 0.991 0.000
z 0.000 0.000 1.168


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