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All results from a given calculation for CH3OHH2O (methanol water dimer)

using model chemistry: HF_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 HF_cp_opt/6-31+G**
 hartrees
Energy at 0K-191.090310
Energy at 298.15K-191.095299
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 HF_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' 4148 3750 21.46      
2 A' 4136 3739 306.33      
3 A' 3269 2956 59.31      
4 A' 3157 2854 81.06      
5 A' 1738 1571 121.38      
6 A' 1638 1481 3.24      
7 A' 1615 1461 12.39      
8 A' 1509 1365 48.88      
9 A' 1188 1074 127.94      
10 A' 1185 1072 21.64      
11 A' 205 185 288.22      
12 A' 135 122 28.80      
13 A' 59 54 47.13      
14 A" 4264 3855 115.36      
15 A" 3202 2895 94.64      
16 A" 1627 1471 1.35      
17 A" 1282 1159 3.14      
18 A" 627 567 205.05      
19 A" 182 164 11.14      
20 A" 85 77 27.25      
21 A" 58 52 22.62      

Unscaled Zero Point Vibrational Energy (zpe) 17654.1 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 15962.9 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 HF_cp_opt/6-31+G**
ABC
1.10140 0.11729 0.10978

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.433 0.000
O2 -0.942 0.519 0.000
O3 2.103 0.250 0.000
C4 -1.544 -0.742 0.000
H5 2.575 0.549 0.760
H6 2.575 0.549 -0.760
H7 -2.616 -0.592 0.000
H8 -1.277 -1.319 -0.883
H9 -1.277 -1.319 0.883

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.94592.11041.94002.68702.68702.80922.34092.3409
O20.94593.05641.39703.59803.59802.00852.06612.0661
O32.11043.05643.77900.94370.94374.79283.82983.8298
C41.94001.39703.77904.38264.38261.08231.08801.0880
H52.68703.59800.94374.38261.52105.36834.58594.2829
H62.68703.59800.94374.38261.52105.36834.28294.5859
H72.80922.00854.79281.08235.36835.36831.76051.7605
H82.34092.06613.82981.08804.58594.28291.76051.7669
H92.34092.06613.82981.08804.28294.58591.76051.7669

picture of methanol water dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 C4 110.306 H1 O3 H5 118.093
H1 O3 H6 118.093 O2 H1 O3 179.746
O2 C4 H7 107.540 O2 C4 H8 111.890
O2 C4 H9 111.890 H5 O3 H6 107.387
H7 C4 H8 108.415 H7 C4 H9 108.415
H8 C4 H9 108.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.745      
4 C 0.000      
5 H 0.373      
6 H 0.373      
7 H 0.000      
8 H 0.000      
9 H 0.000      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.243 -0.471 0.000 3.277
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.112 6.578 0.000
y 6.578 -20.956 0.000
z 0.000 0.000 -17.991
Traceless
 xyz
x 8.361 6.578 0.000
y 6.578 -6.404 0.000
z 0.000 0.000 -1.957
Polar
3z2-r2-3.914
x2-y29.843
xy6.578
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.793 0.029 0.000
y 0.029 0.851 0.000
z 0.000 0.000 1.126


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