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

using model chemistry: PBEPBEultrafine_cp_opt/6-311+G(3df,2pd)

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/6-311+G(3df,2pd)
 hartrees
Energy at 0K-192.013822
Energy at 298.15K-192.018963
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/6-311+G(3df,2pd)
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 3817 3779 71.74      
2 A 3718 3680 8.72      
3 A 3575 3539 463.03      
4 A 3030 3000 37.92      
5 A 2950 2920 66.07      
6 A 2907 2878 82.81      
7 A 1595 1579 67.38      
8 A 1460 1445 2.79      
9 A 1443 1428 2.26      
10 A 1423 1409 3.38      
11 A 1383 1369 35.03      
12 A 1132 1121 0.18      
13 A 1081 1070 2.85      
14 A 1039 1029 105.14      
15 A 673 667 95.14      
16 A 263 260 203.36      
17 A 195 193 0.08      
18 A 160 159 6.25      
19 A 86 85 3.20      
20 A 75 75 34.74      
21 A 68 67 59.64      

Unscaled Zero Point Vibrational Energy (zpe) 16035.9 cm-1
Scaled (by 0.99) Zero Point Vibrational Energy (zpe) 15875.5 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/6-311+G(3df,2pd)
ABC
1.12182 0.12440 0.11632

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine_cp_opt/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.180 0.302 0.000
O2 0.719 0.685 -0.000
O3 -2.045 -0.233 0.000
C4 1.657 -0.382 0.000
H5 -2.475 0.175 -0.767
H6 -2.475 0.175 0.767
H7 2.660 0.065 -0.000
H8 1.568 -1.022 0.896
H9 1.568 -1.022 -0.896

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.97741.94001.96072.42332.42332.85042.36942.3694
O20.97742.91251.42063.32463.32472.03782.10672.1067
O31.94002.91253.70520.96980.96984.71453.80513.8051
C41.96071.42063.70524.23994.24001.09781.10491.1049
H52.42333.32460.96984.23991.53465.19374.53304.2189
H62.42333.32470.96984.24001.53465.19384.21904.5330
H72.85042.03784.71451.09785.19375.19381.78251.7825
H82.36942.10673.80511.10494.53304.21901.78251.7913
H92.36942.10673.80511.10494.21894.53301.78251.7913

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 108.287 H1 O3 H5 108.091
H1 O3 H6 108.092 O2 H1 O3 172.975
O2 C4 H7 107.333 O2 C4 H8 112.467
O2 C4 H9 112.467 H5 O3 H6 104.597
H7 C4 H8 108.039 H7 C4 H9 108.039
H8 C4 H9 108.316
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine_cp_opt/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.370      
4 C 0.000      
5 H 0.187      
6 H 0.183      
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
  -2.550 -0.357 0.000 2.575
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -1.365 -3.215 0.000
y -3.215 -7.630 0.000
z 0.000 0.000 -4.511
Traceless
 xyz
x 4.705 -3.215 0.000
y -3.215 -4.692 0.000
z 0.000 0.000 -0.013
Polar
3z2-r2-0.026
x2-y26.265
xy-3.215
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.353 -0.036 -0.044
y -0.036 1.397 0.055
z -0.044 0.055 1.540


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