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

using model chemistry: PBEPBE/aug-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 PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-192.019636
Energy at 298.15K-192.025103
Counterpoise corrected energy-192.019514
CP Energy at 298.15K-192.024959
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy79.018411
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/aug-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 3768 3744 65.42      
2 A 3716 3692 35.73      
3 A 3492 3469 492.09      
4 A 3062 3042 14.24      
5 A 3003 2983 34.93      
6 A 2944 2925 54.79      
7 A 1611 1600 37.70      
8 A 1455 1446 6.70      
9 A 1444 1434 4.38      
10 A 1422 1413 2.62      
11 A 1327 1318 22.01      
12 A 1132 1125 0.04      
13 A 1046 1040 3.12      
14 A 1003 997 120.23      
15 A 651 647 47.47      
16 A 391 389 38.24      
17 A 299 297 161.35      
18 A 183 182 4.10      
19 A 120 119 100.14      
20 A 68 67 12.53      
21 A 53 53 10.14      

Unscaled Zero Point Vibrational Energy (zpe) 16094.7 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 15990.1 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/aug-cc-pVTZ
ABC
0.99196 0.13489 0.12353

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.167 0.137 -0.051
O2 2.072 -0.212 0.107
O3 -0.642 0.663 -0.106
H4 2.587 0.092 -0.656
H5 -0.796 1.245 0.656
C6 -1.526 -0.465 0.002
H7 -2.581 -0.152 -0.029
H8 -1.321 -1.104 -0.864
H9 -1.340 -1.044 0.920

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.98261.88411.54432.36162.75973.75932.89702.9364
O20.98262.85880.96913.26253.60814.65543.64023.6048
O31.88412.85883.32450.97041.43722.10552.03982.1107
H41.54430.96913.32453.80684.20215.21184.09244.3812
H52.36163.26250.97043.80681.97032.36822.84652.3677
C62.75973.60811.43724.20211.97031.10121.09571.1012
H73.75934.65542.10555.21182.36821.10121.78631.7994
H82.89703.64022.03984.09242.84651.09571.78631.7844
H92.93643.60482.11074.38122.36771.10121.79941.7844

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 104.607 H1 O3 H5 107.268
H1 O3 C6 111.676 O2 H1 O3 171.024
O3 C6 H7 111.396 O3 C6 H8 106.496
O3 C6 H9 111.825 H5 O3 C6 108.282
H7 C6 H8 108.799 H7 C6 H9 109.574
H8 C6 H9 108.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.259      
2 O -0.406      
3 O -0.361      
4 H 0.138      
5 H 0.122      
6 C -0.464      
7 H 0.224      
8 H 0.260      
9 H 0.229      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.453 0.805 -0.169 2.588
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.243 1.962 -4.708
y 1.962 -19.889 1.753
z -4.708 1.753 -19.377
Traceless
 xyz
x -0.611 1.962 -4.708
y 1.962 -0.078 1.753
z -4.708 1.753 0.689
Polar
3z2-r21.378
x2-y2-0.355
xy1.962
xz-4.708
yz1.753


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.564 0.187 -0.075
y 0.187 4.851 0.076
z -0.075 0.076 4.534


<r2> (average value of r2) Å2
<r2> 94.599
(<r2>)1/2 9.726