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All results from a given calculation for H2OCH3OH (water methanol dimer)

using model chemistry: M06-2X/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 M06-2X/6-31G*
 hartrees
Energy at 0K-192.041458
Energy at 298.15K-192.047526
HF Energy-192.041458
Nuclear repulsion energy81.834534
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 M06-2X/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 3897 3691 70.65      
2 A 3815 3613 42.19      
3 A 3712 3515 211.43      
4 A 3183 3014 22.84      
5 A 3148 2981 32.05      
6 A 3074 2912 40.16      
7 A 1734 1642 69.94      
8 A 1547 1465 4.23      
9 A 1537 1455 3.52      
10 A 1508 1428 3.08      
11 A 1404 1329 37.62      
12 A 1196 1132 0.60      
13 A 1117 1058 24.19      
14 A 1090 1032 102.35      
15 A 648 614 195.74      
16 A 529 501 21.30      
17 A 293 278 238.31      
18 A 233 221 133.44      
19 A 208 197 6.97      
20 A 168 159 37.97      
21 A 108 102 22.92      

Unscaled Zero Point Vibrational Energy (zpe) 17073.8 cm-1
Scaled (by 0.947) Zero Point Vibrational Energy (zpe) 16168.9 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 M06-2X/6-31G*
ABC
0.79897 0.16814 0.14625

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.117 0.342 0.025
O2 1.939 -0.144 0.109
O3 -0.790 0.738 -0.103
H4 2.427 0.055 -0.685
H5 -1.176 1.262 0.594
C6 -1.249 -0.593 -0.001
H7 -2.324 -0.657 -0.166
H8 -0.739 -1.161 -0.771
H9 -1.005 -1.031 0.966

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.95891.95131.51842.53502.54403.58822.51752.6966
O20.95892.87550.95333.45203.22134.30262.99683.1920
O31.95132.87553.33990.95391.41182.07492.01342.0778
H41.51840.95333.33994.00973.79534.83273.39323.9609
H52.53503.45200.95394.00971.95012.36232.81532.3293
C62.54403.22131.41183.79531.95011.08951.08391.0893
H73.58824.30262.07494.83272.36231.08951.76971.7776
H82.51752.99682.01343.39322.81531.08391.76971.7624
H92.69663.19202.07783.96092.32931.08931.77761.7624

picture of water methanol dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 105.132 H1 O3 H5 117.322
H1 O3 C6 96.998 O2 H1 O3 161.151
O3 C6 H7 111.448 O3 C6 H8 106.827
O3 C6 H9 111.705 H5 O3 C6 109.513
H7 C6 H8 109.031 H7 C6 H9 109.342
H8 C6 H9 108.380
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.431      
2 O -0.862      
3 O -0.653      
4 H 0.399      
5 H 0.427      
6 C -0.258      
7 H 0.157      
8 H 0.178      
9 H 0.182      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.468 -0.414 0.328 1.560
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.513 -0.227 -5.509
y -0.227 -18.840 -2.757
z -5.509 -2.757 -17.915
Traceless
 xyz
x -2.135 -0.227 -5.509
y -0.227 0.374 -2.757
z -5.509 -2.757 1.761
Polar
3z2-r23.522
x2-y2-1.673
xy-0.227
xz-5.509
yz-2.757


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.532 0.069 -0.201
y 0.069 2.936 -0.224
z -0.201 -0.224 3.037


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