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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-192.028895
Energy at 298.15K 
HF Energy-192.028895
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 B97D3/6-31G*
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' 3640 3568 6.30      
2 A' 3506 3437 402.47      
3 A' 3051 2991 64.25      
4 A' 2907 2850 98.43      
5 A' 1693 1660 74.85      
6 A' 1517 1487 1.42      
7 A' 1483 1454 9.93      
8 A' 1446 1417 51.55      
9 A' 1115 1093 9.96      
10 A' 1059 1038 101.53      
11 A' 351 344 300.23      
12 A' 187 183 0.22      
13 A' 54 53 53.00      
14 A" 3765 3691 38.16      
15 A" 2942 2884 117.45      
16 A" 1493 1464 0.41      
17 A" 1163 1140 0.59      
18 A" 742 728 111.97      
19 A" 226 221 26.37      
20 A" 100 98 44.40      
21 A" 58i 57i 28.76      

Unscaled Zero Point Vibrational Energy (zpe) 16189.9 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 15872.5 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 B97D3/6-31G*
ABC
1.20689 0.12492 0.11762

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.262 0.000
O2 -0.917 -0.090 0.000
O3 1.528 1.413 0.000
C4 -0.820 -1.504 0.000
H5 1.240 1.943 0.764
H6 1.240 1.943 -0.764
H7 -1.845 -1.902 0.000
H8 -0.301 -1.903 -0.895
H9 -0.301 -1.903 0.895

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.98191.91271.94692.22462.22462.84342.36192.3619
O20.98192.86921.41793.06073.06072.03622.11402.1140
O31.91272.86923.74410.97380.97384.72873.89123.8912
C41.94691.41793.74414.08784.08781.09941.10871.1087
H52.22463.06070.97384.08781.52894.98854.46354.1456
H62.22463.06070.97384.08781.52894.98854.14564.4635
H72.84342.03624.72871.09944.98854.98851.78401.7840
H82.36192.11403.89121.10874.46354.14561.78401.7903
H92.36192.11403.89121.10874.14564.46351.78401.7903

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 107.513 H1 O3 H5 109.691
H1 O3 H6 109.691 O2 H1 O3 177.683
O2 C4 H7 107.177 O2 C4 H8 113.362
O2 C4 H9 113.362 H5 O3 H6 104.665
H7 C4 H8 107.661 H7 C4 H9 107.661
H8 C4 H9 107.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.400      
2 O -0.646      
3 O -0.738      
4 C -0.215      
5 H 0.403      
6 H 0.403      
7 H 0.150      
8 H 0.121      
9 H 0.121      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.140 1.720 0.000 2.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.883 2.701 0.000
y 2.701 -11.687 0.000
z 0.000 0.000 -17.861
Traceless
 xyz
x -9.109 2.701 0.000
y 2.701 9.185 0.000
z 0.000 0.000 -0.075
Polar
3z2-r2-0.151
x2-y2-12.196
xy2.701
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.232 0.395 0.000
y 0.395 3.789 0.000
z 0.000 0.000 3.154


<r2> (average value of r2) Å2
<r2> 98.069
(<r2>)1/2 9.903