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

using model chemistry: PBEPBE/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 PBEPBE/6-31+G**
 hartrees
Energy at 0K-191.949684
Energy at 298.15K-191.955298
Counterpoise corrected energy-191.948293
CP Energy at 298.15K-191.953758
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy79.184763
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 PBEPBE/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 3795 3752 73.86      
2 A 3733 3691 37.35      
3 A 3505 3465 502.14      
4 A 3089 3054 15.26      
5 A 3025 2991 39.16      
6 A 2957 2924 59.09      
7 A 1597 1579 49.54      
8 A 1461 1445 6.96      
9 A 1452 1435 5.09      
10 A 1433 1416 4.60      
11 A 1322 1307 25.19      
12 A 1138 1125 0.00      
13 A 1048 1036 7.40      
14 A 1015 1004 133.81      
15 A 700 692 81.47      
16 A 430 425 57.38      
17 A 314 310 196.78      
18 A 203 201 2.48      
19 A 130 129 135.14      
20 A 78 77 23.58      
21 A 62 61 13.21      

Unscaled Zero Point Vibrational Energy (zpe) 16243.8 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 16058.6 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 PBEPBE/6-31+G**
ABC
0.98156 0.13746 0.12552

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.143 0.140 -0.050
O2 2.051 -0.211 0.108
O3 -0.633 0.667 -0.105
H4 2.576 0.083 -0.655
H5 -0.803 1.261 0.648
C6 -1.511 -0.468 0.002
H7 -2.572 -0.163 -0.050
H8 -1.285 -1.116 -0.856
H9 -1.333 -1.038 0.932

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.98591.85391.55592.35182.72403.72762.85052.9134
O20.98592.83220.97183.25613.57304.62573.58843.5800
O31.85392.83223.30770.97401.43922.10962.04172.1153
H41.55590.97183.30773.80794.17625.18894.04794.3656
H52.35183.25610.97403.80791.97682.37582.85392.3766
C62.72403.57301.43924.17621.97681.10481.09921.1050
H73.72764.62572.10965.18892.37581.10481.79251.8070
H82.85053.58842.04174.04792.85391.09921.79251.7905
H92.91343.58002.11534.36562.37661.10501.80701.7905

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 105.269 H1 O3 H5 108.490
H1 O3 C6 110.993 O2 H1 O3 171.168
O3 C6 H7 111.360 O3 C6 H8 106.317
O3 C6 H9 111.825 H5 O3 C6 108.461
H7 C6 H8 108.841 H7 C6 H9 109.717
H8 C6 H9 108.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.418      
2 O -0.761      
3 O -0.559      
4 H 0.342      
5 H 0.364      
6 C -0.308      
7 H 0.157      
8 H 0.180      
9 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.669 0.913 -0.308 2.838
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.198 2.330 -5.436
y 2.330 -19.914 1.972
z -5.436 1.972 -19.483
Traceless
 xyz
x -0.500 2.330 -5.436
y 2.330 -0.073 1.972
z -5.436 1.972 0.573
Polar
3z2-r21.147
x2-y2-0.284
xy2.330
xz-5.436
yz1.972


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.763 0.081 -0.067
y 0.081 3.998 0.083
z -0.067 0.083 3.709


<r2> (average value of r2) Å2
<r2> 93.434
(<r2>)1/2 9.666