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

using model chemistry: wB97X-D/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at wB97X-D/6-31G*
 hartrees
Energy at 0K-192.076700
Energy at 298.15K 
HF Energy-192.076700
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 wB97X-D/6-31G*
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' 3820 3623 14.03      
2 A' 3716 3525 407.88      
3 A' 3137 2976 54.41      
4 A' 3006 2851 77.26      
5 A' 1716 1628 91.42      
6 A' 1559 1478 1.95      
7 A' 1522 1443 5.65      
8 A' 1480 1404 61.73      
9 A' 1149 1090 0.13      
10 A' 1130 1072 113.38      
11 A' 335 318 299.65      
12 A' 202 192 2.34      
13 A' 50 47 57.17      
14 A" 3940 3737 61.41      
15 A" 3051 2894 98.33      
16 A" 1535 1456 1.04      
17 A" 1204 1142 0.93      
18 A" 752 714 137.07      
19 A" 223 212 14.96      
20 A" 102 97 30.36      
21 A" 47i 45i 51.11      

Unscaled Zero Point Vibrational Energy (zpe) 16790.4 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 15925.7 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 wB97X-D/6-31G*
ABC
1.22081 0.12661 0.11921

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.397 0.000
O2 -0.967 0.362 0.000
O3 1.969 0.570 0.000
C4 -1.348 -0.989 0.000
H5 2.251 1.082 0.765
H6 2.251 1.082 -0.765
H7 -2.442 -1.017 0.000
H8 -0.996 -1.534 -0.890
H9 -0.996 -1.534 0.890

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96761.97711.93362.47422.47422.82192.34812.3481
O20.96762.94381.40393.38513.38512.01952.09522.0952
O31.97712.94383.66590.96210.96214.68833.74353.7435
C41.93361.40393.66594.22254.22251.09391.10181.1018
H52.47423.38510.96214.22251.52925.19774.48604.1716
H62.47423.38510.96214.22251.52925.19774.17164.4860
H72.82192.01954.68831.09395.19775.19771.77511.7751
H82.34812.09523.74351.10184.48604.17161.77511.7800
H92.34812.09523.74351.10184.17164.48601.77511.7800

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 107.827 H1 O3 H5 109.775
H1 O3 H6 109.775 O2 H1 O3 177.038
O2 C4 H7 107.243 O2 C4 H8 112.920
O2 C4 H9 112.920 H5 O3 H6 105.265
H7 C4 H8 107.887 H7 C4 H9 107.887
H8 C4 H9 107.764
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.428      
2 O -0.680      
3 O -0.790      
4 C -0.239      
5 H 0.424      
6 H 0.424      
7 H 0.164      
8 H 0.135      
9 H 0.135      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.556 1.699 0.000 2.304
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.849 4.406 0.000
y 4.406 -11.505 0.000
z 0.000 0.000 -17.714
Traceless
 xyz
x -8.240 4.406 0.000
y 4.406 8.777 0.000
z 0.000 0.000 -0.537
Polar
3z2-r2-1.074
x2-y2-11.345
xy4.406
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.119 0.388 0.000
y 0.388 3.466 0.000
z 0.000 0.000 3.063


<r2> (average value of r2) Å2
<r2> 96.897
(<r2>)1/2 9.844