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

using model chemistry: PBEPBEultrafine_cp_opt/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 PBEPBEultrafine_cp_opt/6-31+G**
 hartrees
Energy at 0K-191.948292
Energy at 298.15K-191.953756
Nuclear repulsion energy39.837504
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_cp_opt/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 3797 3754 74.46      
2 A 3727 3685 35.30      
3 A 3520 3480 470.40      
4 A 3087 3052 16.12      
5 A 3021 2987 41.04      
6 A 2955 2921 59.64      
7 A 1594 1576 54.59      
8 A 1462 1445 6.63      
9 A 1451 1434 4.54      
10 A 1434 1417 5.78      
11 A 1320 1305 22.23      
12 A 1136 1123 0.01      
13 A 1046 1034 5.36      
14 A 1015 1003 133.24      
15 A 651 643 77.58      
16 A 406 401 57.76      
17 A 302 298 223.72      
18 A 181 179 2.44      
19 A 125 124 141.57      
20 A 67 66 28.31      
21 A 48 48 12.65      

Unscaled Zero Point Vibrational Energy (zpe) 16171.8 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 15987.5 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_cp_opt/6-31+G**
ABC
0.98847 0.13382 0.12265

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.173 0.134 -0.071
O2 2.078 -0.208 0.109
O3 -0.648 0.665 -0.108
H4 2.614 0.070 -0.653
H5 -0.780 1.238 0.669
C6 -1.531 -0.465 0.004
H7 -2.591 -0.152 0.007
H8 -1.349 -1.087 -0.884
H9 -1.319 -1.067 0.906

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.98481.89721.55552.36242.77013.77512.91742.9334
O20.98482.87140.97173.25243.61994.67053.67493.5937
O31.89722.87143.36060.97411.43862.11072.04102.1164
H41.55550.97173.36063.82514.23065.25124.13524.3807
H52.36243.25240.97413.82511.97662.37672.85362.3791
C62.77013.61991.43864.23061.97661.10511.09921.1051
H73.77514.67052.11075.25122.37671.10511.79181.8062
H82.91743.67492.04104.13522.85361.09921.79181.7904
H92.93343.59372.11644.38072.37911.10511.80621.7904

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 105.325 H1 O3 H5 106.225
H1 O3 C6 111.541 O2 H1 O3 169.609
O3 C6 H7 111.478 O3 C6 H8 106.303
O3 C6 H9 111.942 H5 O3 C6 108.484
H7 C6 H8 108.751 H7 C6 H9 109.609
H8 C6 H9 108.623
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.500      
4 H 0.000      
5 H 0.339      
6 C -0.308      
7 H 0.148      
8 H 0.171      
9 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.551 0.836 -0.300 2.701
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.107 2.389 -5.515
y 2.389 -20.066 2.014
z -5.515 2.014 -19.410
Traceless
 xyz
x -0.369 2.389 -5.515
y 2.389 -0.308 2.014
z -5.515 2.014 0.677
Polar
3z2-r21.353
x2-y2-0.040
xy2.389
xz-5.515
yz2.014


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.791 0.192 0.003
y 0.192 2.973 0.036
z 0.003 0.036 2.687


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