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

using model chemistry: PBEPBE/6-311+G(3df,2pd)

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/6-311+G(3df,2pd)
 hartrees
Energy at 0K-192.015077
Energy at 298.15K-192.020557
Counterpoise corrected energy-192.014486
CP Energy at 298.15K-192.019896
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy79.073309
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/6-311+G(3df,2pd)
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 3796 3758 66.39      
2 A 3741 3703 37.16      
3 A 3524 3489 483.36      
4 A 3066 3035 14.81      
5 A 3006 2976 35.09      
6 A 2946 2916 54.05      
7 A 1617 1601 38.76      
8 A 1457 1442 6.82      
9 A 1445 1431 4.55      
10 A 1425 1411 2.50      
11 A 1328 1314 23.23      
12 A 1135 1123 0.04      
13 A 1047 1037 2.59      
14 A 1007 997 123.17      
15 A 664 657 53.17      
16 A 403 398 40.71      
17 A 301 298 167.50      
18 A 184 182 3.84      
19 A 116 114 105.42      
20 A 69 69 14.65      
21 A 56 56 9.92      

Unscaled Zero Point Vibrational Energy (zpe) 16166.5 cm-1
Scaled (by 0.99) Zero Point Vibrational Energy (zpe) 16004.9 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 PBEPBE/6-311+G(3df,2pd)
ABC
0.99119 0.13497 0.12363

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.166 0.133 -0.049
O2 2.072 -0.210 0.107
O3 -0.645 0.665 -0.107
H4 2.580 0.085 -0.662
H5 -0.785 1.235 0.665
C6 -1.524 -0.465 0.003
H7 -2.580 -0.154 -0.003
H8 -1.336 -1.092 -0.876
H9 -1.319 -1.057 0.908

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.98121.88791.54202.35112.75513.75672.90562.9159
O20.98122.86190.96783.24893.60594.65323.65523.5852
O31.88792.86193.32300.96941.43502.10362.03852.1090
H41.54200.96783.32303.79494.19285.20694.09464.3549
H52.35113.24890.96943.79491.96772.36582.84452.3658
C62.75513.60591.43504.19281.96771.10101.09551.1010
H73.75674.65322.10365.20692.36581.10101.78551.7987
H82.90563.65522.03854.09462.84451.09551.78551.7838
H92.91593.58522.10904.35492.36581.10101.79871.7838

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 104.582 H1 O3 H5 106.240
H1 O3 C6 111.288 O2 H1 O3 171.423
O3 C6 H7 111.409 O3 C6 H8 106.557
O3 C6 H9 111.852 H5 O3 C6 108.291
H7 C6 H8 108.755 H7 C6 H9 109.539
H8 C6 H9 108.606
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.328      
2 O -0.474      
3 O -0.550      
4 H 0.151      
5 H 0.180      
6 C 0.255      
7 H 0.032      
8 H 0.034      
9 H 0.044      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.446 0.784 -0.194 2.576
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.265 2.042 -4.856
y 2.042 -19.915 1.818
z -4.856 1.818 -19.260
Traceless
 xyz
x -0.677 2.042 -4.856
y 2.042 -0.152 1.818
z -4.856 1.818 0.830
Polar
3z2-r21.659
x2-y2-0.350
xy2.042
xz-4.856
yz1.818


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.297 0.164 -0.069
y 0.164 4.552 0.088
z -0.069 0.088 4.206


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