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

using model chemistry: PBEPBE_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 PBEPBE_cp_opt/6-31+G**
 hartrees
Energy at 0K-191.948293
Energy at 298.15K-191.953758
Nuclear repulsion energy39.835826
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_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 75.01      
2 A 3730 3688 35.22      
3 A 3522 3482 468.59      
4 A 3088 3053 16.09      
5 A 3022 2988 40.97      
6 A 2956 2922 59.39      
7 A 1593 1575 54.63      
8 A 1462 1446 6.65      
9 A 1451 1434 4.54      
10 A 1434 1418 5.69      
11 A 1319 1304 21.81      
12 A 1137 1124 0.01      
13 A 1045 1033 4.39      
14 A 1014 1002 134.37      
15 A 651 643 78.31      
16 A 405 400 56.45      
17 A 300 297 222.96      
18 A 181 179 2.56      
19 A 125 123 140.79      
20 A 67 66 31.34      
21 A 50 50 12.29      

Unscaled Zero Point Vibrational Energy (zpe) 16174.3 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 15989.9 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_cp_opt/6-31+G**
ABC
0.98020 0.13444 0.12303

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.170 0.140 -0.071
O2 2.074 -0.208 0.108
O3 -0.651 0.669 -0.108
H4 2.613 0.072 -0.650
H5 -0.787 1.239 0.670
C6 -1.524 -0.469 0.003
H7 -2.587 -0.165 0.010
H8 -1.339 -1.088 -0.886
H9 -1.305 -1.071 0.904

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.98481.89741.55572.36452.76323.77002.90972.9225
O20.98482.87120.97173.25523.60874.66153.66183.5762
O31.89742.87123.36230.97411.43882.11082.04112.1164
H41.55570.97173.36233.82944.22295.24644.12524.3664
H52.36453.25520.97413.82941.97652.37622.85352.3791
C62.76323.60871.43884.22291.97651.10511.09921.1051
H73.77004.66152.11085.24642.37621.10511.79191.8063
H82.90973.66182.04114.12522.85351.09921.79191.7904
H92.92253.57622.11644.36642.37911.10511.80631.7904

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 105.341 H1 O3 H5 106.367
H1 O3 C6 111.091 O2 H1 O3 169.432
O3 C6 H7 111.472 O3 C6 H8 106.298
O3 C6 H9 111.934 H5 O3 C6 108.464
H7 C6 H8 108.759 H7 C6 H9 109.617
H8 C6 H9 108.625
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.493      
4 H 0.000      
5 H 0.338      
6 C -0.312      
7 H 0.147      
8 H 0.171      
9 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.534 0.835 -0.293 2.684
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.998 0.080 -0.971
y 0.080 -12.319 2.295
z -0.971 2.295 -12.825
Traceless
 xyz
x 0.574 0.080 -0.971
y 0.080 0.093 2.295
z -0.971 2.295 -0.667
Polar
3z2-r2-1.333
x2-y20.321
xy0.080
xz-0.971
yz2.295


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.790 0.193 0.003
y 0.193 2.974 0.035
z 0.003 0.035 2.689


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