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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-191.905208
Energy at 298.15K-191.911108
Counterpoise corrected energy-191.900909
CP Energy at 298.15K-191.906423
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy81.057616
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 PBEPBEultrafine/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 3705 3644 36.42      
2 A 3633 3573 19.85      
3 A 3466 3408 258.84      
4 A 3080 3029 24.69      
5 A 3027 2977 33.29      
6 A 2959 2910 53.31      
7 A 1716 1688 48.88      
8 A 1493 1468 3.82      
9 A 1477 1452 3.24      
10 A 1446 1422 1.32      
11 A 1361 1338 26.88      
12 A 1146 1127 2.09      
13 A 1065 1047 4.53      
14 A 1018 1001 106.83      
15 A 673 662 160.11      
16 A 544 535 23.43      
17 A 295 290 233.68      
18 A 205 201 7.62      
19 A 158 155 94.94      
20 A 134 132 29.87      
21 A 114 112 28.86      

Unscaled Zero Point Vibrational Energy (zpe) 16355.4 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 16085.6 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 PBEPBEultrafine/6-31G*
ABC
0.79186 0.16405 0.14314

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.075 0.364 0.187
O2 -1.898 -0.092 -0.118
O3 0.780 0.762 0.146
H4 -2.223 -0.525 0.695
H5 0.699 1.151 -0.749
C6 1.241 -0.588 -0.034
H7 2.184 -0.628 -0.611
H8 1.435 -0.985 0.974
H9 0.471 -1.214 -0.522

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.98841.89851.53762.15492.51403.49952.95672.3208
O20.98842.82340.97632.94723.17854.14643.61912.6523
O31.89852.82343.31310.97921.43792.11602.04122.1094
H41.53760.97633.31313.66453.53994.59743.69733.0353
H52.15492.94720.97923.66451.95632.32152.84102.3868
C62.51403.17851.43793.53991.95631.10641.10101.1058
H73.49954.14642.11604.59742.32151.10641.78901.8127
H82.95673.61912.04123.69732.84101.10101.78901.7948
H92.32082.65232.10943.03532.38681.10581.81271.7948

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 103.007 H1 O3 H5 91.239
H1 O3 C6 96.817 O2 H1 O3 154.605
O3 C6 H7 111.878 O3 C6 H8 106.257
O3 C6 H9 111.376 H5 O3 C6 106.518
H7 C6 H8 108.279 H7 C6 H9 110.052
H8 C6 H9 108.840
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.387      
2 O -0.805      
3 O -0.572      
4 H 0.370      
5 H 0.404      
6 C -0.292      
7 H 0.156      
8 H 0.178      
9 H 0.174      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.726 -0.574 0.258 1.837
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.728 0.149 -4.875
y 0.149 -18.741 -2.904
z -4.875 -2.904 -17.959
Traceless
 xyz
x -3.379 0.149 -4.875
y 0.149 1.103 -2.904
z -4.875 -2.904 2.276
Polar
3z2-r24.552
x2-y2-2.988
xy0.149
xz-4.875
yz-2.904


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.885 0.010 -0.199
y 0.010 3.103 -0.283
z -0.199 -0.283 3.169


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