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

using model chemistry: PBEPBE_cp/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 PBEPBE_cp/6-31G*
 hartrees
Energy at 0K-191.899443
Energy at 298.15K-191.892219
Nuclear repulsion energy 
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/6-31G*
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 3707 3654 36.50      
2 A 3634 3582 19.85      
3 A 3468 3418 259.26      
4 A 3080 3036 24.69      
5 A 3027 2984 33.35      
6 A 2959 2917 53.20      
7 A 1716 1691 48.88      
8 A 1493 1472 3.82      
9 A 1477 1456 3.22      
10 A 1446 1425 1.35      
11 A 1361 1342 26.97      
12 A 1147 1130 2.05      
13 A 1065 1050 4.85      
14 A 1018 1004 106.59      
15 A 676 666 159.28      
16 A 545 538 23.84      
17 A 295 290 231.55      
18 A 206 203 7.38      
19 A 158 156 93.70      
20 A 135 133 36.16      
21 A 115 114 26.37      

Unscaled Zero Point Vibrational Energy (zpe) 16364.0 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 16130.0 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/6-31G*
ABC
0.79207 0.16402 0.14312

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/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 0.698 1.150 -0.749
C6 1.241 -0.588 -0.034
H7 2.185 -0.627 -0.611
H8 1.436 -0.984 0.974
H9 0.472 -1.215 -0.522

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.98841.89811.53762.15382.51413.49942.95722.3212
O20.98842.82320.97632.94623.17914.14683.61992.6533
O31.89812.82323.31280.97921.43802.11592.04122.1095
H41.53760.97633.31283.66363.54084.59813.69853.0366
H52.15382.94620.97923.66361.95632.32142.84102.3867
C62.51413.17911.43803.54081.95631.10641.10101.1058
H73.49944.14682.11594.59812.32141.10641.78901.8127
H82.95723.61992.04123.69852.84101.10101.78901.7948
H92.32122.65332.10953.03662.38671.10581.81271.7948

picture of water methanol dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/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
  1.727 -0.574 0.258 1.838
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 83.054
(<r2>)1/2 9.113