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

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-191.151665
Energy at 298.15K-191.156780
HF Energy-191.151665
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy78.568006
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/TZVP
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' 4119 3743 4.70      
2 A' 4102 3727 319.55      
3 A' 3244 2948 63.17      
4 A' 3137 2851 75.62      
5 A' 1735 1576 94.68      
6 A' 1631 1482 4.07      
7 A' 1615 1468 12.63      
8 A' 1521 1382 46.34      
9 A' 1192 1083 25.26      
10 A' 1179 1072 115.95      
11 A' 210 191 270.82      
12 A' 152 138 29.31      
13 A' 68 62 35.09      
14 A" 4220 3834 102.20      
15 A" 3177 2886 100.57      
16 A" 1617 1469 1.22      
17 A" 1282 1165 3.09      
18 A" 654 595 200.31      
19 A" 195 178 11.29      
20 A" 91 83 19.50      
21 A" 67 61 22.12      

Unscaled Zero Point Vibrational Energy (zpe) 17605.8 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 15996.6 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/TZVP
ABC
1.08104 0.12280 0.11434

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.408 0.000
O2 -0.944 0.445 0.000
O3 2.039 0.395 0.000
C4 -1.466 -0.850 0.000
H5 2.456 0.780 0.753
H6 2.456 0.780 -0.753
H7 -2.545 -0.771 0.000
H8 -1.166 -1.411 -0.882
H9 -1.166 -1.411 0.882

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.94482.03951.93182.59532.59532.80532.33372.3337
O20.94482.98401.39583.49823.49822.01072.06682.0668
O32.03952.98403.72020.94260.94264.73083.78343.7834
C41.93181.39583.72024.31334.31331.08181.08781.0878
H52.59533.49820.94264.31331.50635.28994.53754.2347
H62.59533.49820.94264.31331.50635.28994.23474.5375
H72.80532.01074.73081.08185.28995.28991.75771.7577
H82.33372.06683.78341.08784.53754.23471.75771.7636
H92.33372.06683.78341.08784.23474.53751.75771.7636

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 109.738 H1 O3 H5 116.032
H1 O3 H6 116.032 O2 H1 O3 178.131
O2 C4 H7 107.828 O2 C4 H8 112.050
O2 C4 H9 112.050 H5 O3 H6 106.069
H7 C4 H8 108.229 H7 C4 H9 108.229
H8 C4 H9 108.320
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.304      
2 O -0.479      
3 O -0.585      
4 C -0.009      
5 H 0.297      
6 H 0.297      
7 H 0.074      
8 H 0.051      
9 H 0.051      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.445 -0.469 0.000 3.477
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.019 6.232 0.000
y 6.232 -20.597 0.000
z 0.000 0.000 -17.838
Traceless
 xyz
x 8.198 6.232 0.000
y 6.232 -6.169 0.000
z 0.000 0.000 -2.030
Polar
3z2-r2-4.059
x2-y29.578
xy6.232
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.675 0.212 0.000
y 0.212 3.126 0.000
z 0.000 0.000 3.316


<r2> (average value of r2) Å2
<r2> 100.244
(<r2>)1/2 10.012