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

using model chemistry: B1B95/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B1B95/aug-cc-pVDZ
 hartrees
Energy at 0K-192.103792
Energy at 298.15K-192.108890
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 B1B95/aug-cc-pVDZ
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' 3850 3688 9.35      
2 A' 3766 3608 403.23      
3 A' 3143 3011 37.41      
4 A' 3014 2887 78.62      
5 A' 1626 1558 74.35      
6 A' 1487 1424 3.80      
7 A' 1451 1390 5.98      
8 A' 1411 1352 36.54      
9 A' 1114 1067 23.31      
10 A' 1095 1049 87.87      
11 A' 248 238 202.97      
12 A' 145 138 8.33      
13 A' 75 72 33.32      
14 A" 3958 3792 84.85      
15 A" 3071 2942 64.28      
16 A" 1469 1407 2.73      
17 A" 1163 1114 0.45      
18 A" 659 631 108.72      
19 A" 194 186 0.09      
20 A" 86 82 0.97      
21 A" 58 56 57.37      

Unscaled Zero Point Vibrational Energy (zpe) 16541.1 cm-1
Scaled (by 0.9579) Zero Point Vibrational Energy (zpe) 15844.7 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 B1B95/aug-cc-pVDZ
ABC
1.14753 0.12199 0.11443

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.345 0.000
O2 -0.963 0.270 0.000
O3 1.942 0.738 0.000
C4 -1.315 -1.094 0.000
H5 2.176 1.275 0.762
H6 2.176 1.275 -0.762
H7 -2.408 -1.149 0.000
H8 -0.946 -1.621 -0.893
H9 -0.946 -1.621 0.893

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96571.98171.94902.48622.48622.83362.35712.3571
O20.96572.94261.40853.38293.38292.02532.09122.0912
O31.98172.94263.73710.96070.96074.74193.83453.8345
C41.94901.40853.73714.28714.28711.09441.10071.1007
H52.48623.38290.96074.28711.52365.24114.56844.2601
H62.48623.38290.96074.28711.52365.24114.26014.5684
H72.83362.02534.74191.09445.24115.24111.77711.7771
H82.35712.09123.83451.10074.56844.26011.77711.7861
H92.35712.09123.83451.10074.26014.56841.77711.7861

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 108.925 H1 O3 H5 110.463
H1 O3 H6 110.463 O2 H1 O3 172.999
O2 C4 H7 107.364 O2 C4 H8 112.319
O2 C4 H9 112.319 H5 O3 H6 104.928
H7 C4 H8 108.109 H7 C4 H9 108.109
H8 C4 H9 108.456
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.110      
2 O -0.386      
3 O -0.262      
4 C 1.051      
5 H 0.129      
6 H 0.129      
7 H -0.327      
8 H -0.222      
9 H -0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.489 0.762 0.000 2.603
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 4.825 0.445 0.000
y 0.445 4.717 0.000
z 0.000 0.000 4.291


<r2> (average value of r2) Å2
<r2> 100.862
(<r2>)1/2 10.043