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All results from a given calculation for H2OCH3OH (water methanol dimer)

using model chemistry: PBEPBE_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 PBEPBE_cp_opt/6-311+G(3df,2pd)
 hartrees
Energy at 0K-192.014486
Energy at 298.15K-192.019896
Nuclear repulsion energy39.970049
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 PBEPBE_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 3797 3759 66.69      
2 A 3743 3706 37.01      
3 A 3533 3498 470.85      
4 A 3066 3035 15.01      
5 A 3005 2975 35.89      
6 A 2945 2916 53.76      
7 A 1611 1595 38.71      
8 A 1457 1443 6.51      
9 A 1445 1431 4.40      
10 A 1425 1411 2.62      
11 A 1328 1315 22.63      
12 A 1134 1123 0.04      
13 A 1048 1037 2.28      
14 A 1008 998 122.01      
15 A 639 633 54.20      
16 A 387 383 41.87      
17 A 293 290 169.60      
18 A 178 176 3.71      
19 A 115 113 108.55      
20 A 64 63 15.85      
21 A 51 51 10.32      

Unscaled Zero Point Vibrational Energy (zpe) 16135.7 cm-1
Scaled (by 0.99) Zero Point Vibrational Energy (zpe) 15974.4 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 PBEPBE_cp_opt/6-311+G(3df,2pd)
ABC
0.99457 0.13364 0.12253

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.178 0.135 -0.053
O2 2.082 -0.210 0.107
O3 -0.649 0.662 -0.106
H4 2.597 0.090 -0.656
H5 -0.799 1.241 0.658
C6 -1.531 -0.464 0.002
H7 -2.587 -0.153 -0.020
H8 -1.333 -1.100 -0.867
H9 -1.339 -1.049 0.916

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.98051.90271.54162.37382.77533.77622.91472.9461
O20.98052.87500.96783.27193.62344.67083.66103.6144
O31.90272.87503.34120.96921.43462.10372.03812.1089
H41.54160.96783.34123.81774.21615.22764.11104.3884
H52.37383.27190.96923.81771.96762.36592.84432.3665
C62.77533.62341.43464.21611.96761.10111.09561.1011
H73.77624.67082.10375.22762.36591.10111.78541.7986
H82.91473.66102.03814.11102.84431.09561.78541.7837
H92.94613.61442.10894.38842.36651.10111.79861.7837

picture of water methanol dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 104.600 H1 O3 H5 106.954
H1 O3 C6 111.759 O2 H1 O3 170.846
O3 C6 H7 111.446 O3 C6 H8 106.556
O3 C6 H9 111.875 H5 O3 C6 108.317
H7 C6 H8 108.740 H7 C6 H9 109.517
H8 C6 H9 108.581
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE_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 -0.510      
4 H 0.000      
5 H 0.169      
6 C 0.254      
7 H 0.030      
8 H 0.027      
9 H 0.030      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.434 0.808 -0.202 2.573
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.161 2.047 -4.865
y 2.047 -19.869 1.797
z -4.865 1.797 -19.312
Traceless
 xyz
x -0.570 2.047 -4.865
y 2.047 -0.133 1.797
z -4.865 1.797 0.703
Polar
3z2-r21.406
x2-y2-0.291
xy2.047
xz-4.865
yz1.797


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.063 -0.159 0.008
y -0.159 3.506 -0.038
z 0.008 -0.038 3.065


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