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

using model chemistry: B3LYP/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 B3LYP/6-311+G(3df,2pd)
 hartrees
Energy at 0K-192.245634
Energy at 298.15K-192.250764
Counterpoise corrected energy-192.245177
CP Energy at 298.15K-192.250226
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy78.263995
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 B3LYP/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 3680 11.07      
2 A' 3726 3592 421.15      
3 A' 3093 2983 38.68      
4 A' 2981 2874 75.79      
5 A' 1630 1571 77.61      
6 A' 1512 1458 3.58      
7 A' 1479 1426 3.69      
8 A' 1421 1370 39.13      
9 A' 1115 1075 11.11      
10 A' 1064 1026 103.19      
11 A' 254 245 202.80      
12 A' 159 153 8.87      
13 A' 79 76 37.96      
14 A" 3914 3774 84.81      
15 A" 3022 2914 64.80      
16 A" 1499 1445 2.47      
17 A" 1174 1132 0.56      
18 A" 675 651 117.02      
19 A" 187 181 0.41      
20 A" 87 83 6.91      
21 A" 61 59 52.41      

Unscaled Zero Point Vibrational Energy (zpe) 16473.2 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 15883.4 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 B3LYP/6-311+G(3df,2pd)
ABC
1.14426 0.12306 0.11532

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/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 0.252 0.000
O3 1.915 0.779 0.000
C4 -1.285 -1.126 0.000
H5 2.135 1.319 0.765
H6 2.135 1.319 -0.765
H7 -2.371 -1.205 0.000
H8 -0.905 -1.640 -0.889
H9 -0.905 -1.640 0.889

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96691.96161.95922.46512.46512.83732.36222.3622
O20.96692.92431.41553.36333.36332.02742.09152.0915
O31.96162.92433.72440.96170.96174.72323.82023.8202
C41.95921.41553.72444.27324.27321.08891.09521.0952
H52.46513.36330.96174.27321.53025.22134.55314.2439
H62.46513.36330.96174.27321.53025.22134.24394.5531
H72.83732.02744.72321.08895.22135.22131.76941.7694
H82.36222.09153.82021.09524.55314.24391.76941.7773
H92.36222.09153.82021.09524.24394.55311.76941.7773

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 110.216
H1 O3 H6 110.216 O2 H1 O3 173.399
O2 C4 H7 107.386 O2 C4 H8 112.196
O2 C4 H9 112.196 H5 O3 H6 105.427
H7 C4 H8 108.219 H7 C4 H9 108.219
H8 C4 H9 108.475
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/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
  2.497 0.791 0.000 2.619
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.024 7.161 0.000
y 7.161 -16.796 0.000
z 0.000 0.000 -18.419
Traceless
 xyz
x -0.416 7.161 0.000
y 7.161 1.425 0.000
z 0.000 0.000 -1.009
Polar
3z2-r2-2.018
x2-y2-1.227
xy7.161
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.709 0.456 0.000
y 0.456 4.608 0.000
z 0.000 0.000 4.136


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