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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-311+G(3df,2pd)
 hartrees
Energy at 0K-192.245631
Energy at 298.15K-192.250783
Counterpoise corrected energy-192.245177
CP Energy at 298.15K-192.250267
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy78.262406
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 B3LYPultrafine/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' 3817 3703 11.15      
2 A' 3724 3613 420.53      
3 A' 3093 3000 38.72      
4 A' 2980 2890 75.79      
5 A' 1630 1581 77.66      
6 A' 1512 1467 3.59      
7 A' 1479 1435 3.66      
8 A' 1420 1377 38.85      
9 A' 1114 1081 10.87      
10 A' 1064 1032 103.67      
11 A' 255 247 203.81      
12 A' 159 154 8.25      
13 A' 77 74 37.40      
14 A" 3914 3796 84.82      
15 A" 3021 2930 64.80      
16 A" 1499 1454 2.48      
17 A" 1174 1139 0.57      
18 A" 674 654 117.12      
19 A" 193 187 0.35      
20 A" 90 87 5.89      
21 A" 67 65 53.38      

Unscaled Zero Point Vibrational Energy (zpe) 16477.3 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 15983.0 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 B3LYPultrafine/6-311+G(3df,2pd)
ABC
1.14373 0.12305 0.11531

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311+G(3df,2pd)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.353 0.000
O2 -0.962 0.253 0.000
O3 1.916 0.777 0.000
C4 -1.287 -1.124 0.000
H5 2.137 1.316 0.765
H6 2.137 1.316 -0.765
H7 -2.373 -1.203 0.000
H8 -0.906 -1.639 -0.889
H9 -0.906 -1.639 0.889

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96691.96201.95912.46572.46572.83722.36222.3622
O20.96692.92461.41553.36413.36412.02742.09152.0915
O31.96202.92463.72420.96170.96174.72323.81993.8199
C41.95911.41553.72424.27344.27341.08891.09521.0952
H52.46573.36410.96174.27341.53025.22174.55304.2438
H62.46573.36410.96174.27341.53025.22174.24384.5530
H72.83722.02744.72321.08895.22175.22171.76941.7694
H82.36222.09153.81991.09524.55304.24381.76941.7774
H92.36222.09153.81991.09524.24384.55301.76941.7774

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 109.190 H1 O3 H5 110.239
H1 O3 H6 110.239 O2 H1 O3 173.442
O2 C4 H7 107.387 O2 C4 H8 112.198
O2 C4 H9 112.198 H5 O3 H6 105.429
H7 C4 H8 108.214 H7 C4 H9 108.214
H8 C4 H9 108.480
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.305      
2 O -0.605      
3 O -0.364      
4 C 0.200      
5 H 0.176      
6 H 0.176      
7 H 0.038      
8 H 0.037      
9 H 0.037      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.500 0.787 0.000 2.621
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.000 7.164 0.000
y 7.164 -16.817 0.000
z 0.000 0.000 -18.419
Traceless
 xyz
x -0.382 7.164 0.000
y 7.164 1.393 0.000
z 0.000 0.000 -1.011
Polar
3z2-r2-2.021
x2-y2-1.184
xy7.164
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.711 0.456 0.000
y 0.456 4.606 0.000
z 0.000 0.000 4.136


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