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

using model chemistry: PBEPBEultrafine_cp_opt/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at PBEPBEultrafine_cp_opt/6-31+G**
 hartrees
Energy at 0K-191.947376
Energy at 298.15K-191.952533
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 PBEPBEultrafine_cp_opt/6-31+G**
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 3826 3782 70.01      
2 A 3705 3663 9.20      
3 A 3563 3523 453.54      
4 A 3052 3017 40.29      
5 A 2962 2928 76.58      
6 A 2914 2881 93.53      
7 A 1579 1561 84.92      
8 A 1464 1448 2.59      
9 A 1448 1431 2.04      
10 A 1432 1416 9.46      
11 A 1372 1356 39.42      
12 A 1135 1122 0.01      
13 A 1081 1069 6.84      
14 A 1045 1033 114.63      
15 A 689 681 137.01      
16 A 277 274 273.56      
17 A 198 196 0.04      
18 A 159 158 8.61      
19 A 86 85 12.87      
20 A 71 70 49.59      
21 A 68 68 68.39      

Unscaled Zero Point Vibrational Energy (zpe) 16063.7 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 15880.5 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 PBEPBEultrafine_cp_opt/6-31+G**
ABC
1.14645 0.12244 0.11490

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.184 -0.269 0.000
O2 0.711 -0.674 -0.000
O3 -2.062 0.233 0.000
C4 1.678 0.372 0.000
H5 -2.482 -0.182 0.774
H6 -2.482 -0.182 -0.774
H7 2.671 -0.106 -0.000
H8 1.607 1.017 -0.899
H9 1.607 1.017 0.899

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.98221.94391.96932.42652.42652.85962.38102.3810
O20.98222.91741.42443.32203.32202.04082.11442.1144
O31.94392.91743.74280.97360.97364.74513.85793.8579
C41.96931.42443.74284.26784.26781.10151.10911.1091
H52.42653.32200.97364.26781.54815.21154.57784.2630
H62.42653.32200.97364.26781.54815.21144.26304.5779
H72.85962.04084.74511.10155.21155.21141.78931.7893
H82.38102.11443.85791.10914.57784.26301.78931.7981
H92.38102.11443.85791.10914.26304.57791.78931.7981

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 108.426 H1 O3 H5 107.864
H1 O3 H6 107.867 O2 H1 O3 170.606
O2 C4 H7 107.101 O2 C4 H8 112.548
O2 C4 H9 112.548 H5 O3 H6 105.315
H7 C4 H8 108.074 H7 C4 H9 108.074
H8 C4 H9 108.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.703      
4 C 0.000      
5 H 0.351      
6 H 0.352      
7 H 0.000      
8 H 0.000      
9 H 0.000      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.593 0.380 0.000 2.621
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -0.651 3.737 0.000
y 3.737 -7.750 -0.000
z 0.000 -0.000 -4.435
Traceless
 xyz
x 5.442 3.737 0.000
y 3.737 -5.207 -0.000
z 0.000 -0.000 -0.235
Polar
3z2-r2-0.469
x2-y27.099
xy3.737
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.110 -0.025 -0.049
y -0.025 1.134 0.066
z -0.049 0.066 1.295


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