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

using model chemistry: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-191.154071
Energy at 298.15K-191.159138
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy78.131645
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/6-311+G(3df,2p)
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' 4145 3766 57.18      
2 A' 4134 3756 274.39      
3 A' 3231 2936 54.92      
4 A' 3131 2845 76.22      
5 A' 1751 1591 98.83      
6 A' 1632 1483 4.25      
7 A' 1610 1463 6.48      
8 A' 1521 1382 45.96      
9 A' 1192 1083 20.95      
10 A' 1184 1076 114.32      
11 A' 215 196 229.88      
12 A' 133 121 12.80      
13 A' 63 58 40.08      
14 A" 4241 3853 111.22      
15 A" 3170 2880 82.65      
16 A" 1621 1473 2.55      
17 A" 1283 1166 2.66      
18 A" 626 569 149.45      
19 A" 188 171 3.85      
20 A" 90 82 10.20      
21 A" 74 68 43.47      

Unscaled Zero Point Vibrational Energy (zpe) 17616.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 16006.7 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/6-311+G(3df,2p)
ABC
1.14126 0.11723 0.11008

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.386 0.000
O2 -0.939 0.461 0.000
O3 2.097 0.336 0.000
C4 -1.524 -0.803 0.000
H5 2.488 0.739 0.754
H6 2.488 0.739 -0.754
H7 -2.597 -0.670 0.000
H8 -1.251 -1.377 -0.882
H9 -1.251 -1.377 0.882

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.94202.09761.93242.62412.62412.80332.33472.3347
O20.94203.03851.39293.52033.52032.00742.06282.0628
O32.09763.03853.79530.94060.94064.80033.86293.8629
C41.93241.39293.79534.36384.36381.08131.08681.0868
H52.62413.52030.94064.36381.50825.33064.59794.2989
H62.62413.52030.94064.36381.50825.33064.29894.5979
H72.80332.00744.80031.08135.33065.33061.75691.7569
H82.33472.06283.86291.08684.59794.29891.75691.7634
H92.33472.06283.86291.08684.29894.59791.75691.7634

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 110.208 H1 O3 H5 113.945
H1 O3 H6 113.945 O2 H1 O3 176.758
O2 C4 H7 107.784 O2 C4 H8 111.988
O2 C4 H9 111.988 H5 O3 H6 106.593
H7 C4 H8 108.256 H7 C4 H9 108.256
H8 C4 H9 108.437
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.306      
2 O -0.737      
3 O -0.442      
4 C 0.152      
5 H 0.217      
6 H 0.217      
7 H 0.097      
8 H 0.095      
9 H 0.095      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.779 0.015 0.000 2.779
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -13.286 6.762 0.000
y 6.762 -19.843 0.000
z 0.000 0.000 -17.901
Traceless
 xyz
x 5.586 6.762 0.000
y 6.762 -4.250 0.000
z 0.000 0.000 -1.336
Polar
3z2-r2-2.673
x2-y26.558
xy6.762
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.204 0.287 0.000
y 0.287 3.887 0.000
z 0.000 0.000 3.727


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