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

using model chemistry: wB97X-D/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-192.176447
Energy at 298.15K 
HF Energy-192.176447
Nuclear repulsion energy79.226602
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/cc-pVTZ
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' 3878 3708 8.54      
2 A' 3777 3611 428.01      
3 A' 3116 2979 46.59      
4 A' 2999 2867 73.80      
5 A' 1643 1571 71.92      
6 A' 1524 1457 3.43      
7 A' 1489 1424 6.62      
8 A' 1448 1385 33.41      
9 A' 1132 1082 0.52      
10 A' 1105 1056 108.93      
11 A' 266 254 223.11      
12 A' 188 180 5.56      
13 A' 64 62 30.37      
14 A" 3981 3806 73.46      
15 A" 3045 2911 76.93      
16 A" 1495 1429 1.69      
17 A" 1188 1135 0.86      
18 A" 701 670 108.19      
19 A" 206 197 0.29      
20 A" 45 43 62.20      
21 A" 56i 54i 1.65      

Unscaled Zero Point Vibrational Energy (zpe) 16616.7 cm-1
Scaled (by 0.956) Zero Point Vibrational Energy (zpe) 15885.5 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 wB97X-D/cc-pVTZ
ABC
1.06668 0.13139 0.12163

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.456 0.000
O2 -0.961 0.436 0.000
O3 1.986 0.434 0.000
C4 -1.382 -0.903 0.000
H5 2.321 0.907 0.760
H6 2.321 0.907 -0.760
H7 -2.472 -0.907 0.000
H8 -1.040 -1.453 -0.885
H9 -1.040 -1.453 0.885

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96111.98651.93852.48322.48322.82262.34662.3466
O20.96112.94721.40423.40113.40112.02152.08732.0873
O31.98652.94723.62440.95530.95534.65553.67433.6743
C41.93851.40423.62444.19114.19111.08961.09641.0964
H52.48323.40110.95534.19111.51955.18034.42334.1081
H62.48323.40110.95534.19111.51955.18034.10814.4233
H72.82262.02154.65551.08965.18035.18031.76961.7696
H82.34662.08733.67431.09644.42334.10811.76961.7700
H92.34662.08733.67431.09644.10814.42331.76961.7700

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 108.637 H1 O3 H5 110.154
H1 O3 H6 110.154 O2 H1 O3 178.197
O2 C4 H7 107.650 O2 C4 H8 112.594
O2 C4 H9 112.594 H5 O3 H6 105.369
H7 C4 H8 108.096 H7 C4 H9 108.096
H8 C4 H9 107.639
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.205      
2 O -0.388      
3 O -0.386      
4 C -0.008      
5 H 0.220      
6 H 0.220      
7 H 0.070      
8 H 0.033      
9 H 0.033      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.727 0.783 0.000 2.837
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.643 7.046 0.000
y 7.046 -17.163 0.000
z 0.000 0.000 -17.911
Traceless
 xyz
x 0.894 7.046 0.000
y 7.046 0.115 0.000
z 0.000 0.000 -1.009
Polar
3z2-r2-2.018
x2-y20.520
xy7.046
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.253 0.439 0.000
y 0.439 3.928 0.000
z 0.000 0.000 3.699


<r2> (average value of r2) Å2
<r2> 95.384
(<r2>)1/2 9.766