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

using model chemistry: MP2/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 MP2/aug-cc-pVTZ
 hartrees
Energy at 0K-191.867567
Energy at 298.15K-191.873046
HF Energy-191.157658
Counterpoise corrected energy-191.866648
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy80.172679
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 MP2/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 3909 3725 107.94      
2 A 3850 3668 51.34      
3 A 3671 3498 382.02      
4 A 3197 3047 11.23      
5 A 3150 3002 27.15      
6 A 3069 2925 42.33      
7 A 1651 1573 43.48      
8 A 1534 1461 6.39      
9 A 1524 1453 4.32      
10 A 1493 1423 2.85      
11 A 1370 1306 22.51      
12 A 1187 1131 0.40      
13 A 1085 1034 5.49      
14 A 1050 1001 118.77      
15 A 649 618 84.37      
16 A 376 358 42.50      
17 A 309 295 150.95      
18 A 191 182 4.81      
19 A 126 120 108.57      
20 A 57 54 5.92      
21 A 45 43 21.83      

Unscaled Zero Point Vibrational Energy (zpe) 16747.1 cm-1
Scaled (by 0.9529) Zero Point Vibrational Energy (zpe) 15958.3 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 MP2/aug-cc-pVTZ
ABC
0.89145 0.14725 0.13133

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.135 0.238 -0.027
O2 1.988 -0.209 0.096
O3 -0.691 0.712 -0.096
H4 2.563 0.181 -0.568
H5 -0.988 1.283 0.619
C6 -1.399 -0.528 -0.004
H7 -2.470 -0.381 -0.137
H8 -1.022 -1.155 -0.806
H9 -1.210 -1.025 0.948

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.97101.88751.52832.45352.64693.65932.68342.8360
O20.97102.83940.96053.37073.40344.46763.28213.4088
O31.88752.83943.33070.96211.43152.08892.02532.0923
H41.52830.96053.33073.90374.06425.08283.83404.2412
H52.45353.37070.96213.90371.95882.35272.82422.3418
C62.64693.40341.43154.06421.95881.08961.08521.0898
H73.65934.46762.08895.08282.35271.08961.77251.7831
H82.68343.28212.02533.83402.82421.08521.77251.7682
H92.83603.40882.09234.24122.34181.08981.78311.7682

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 104.599 H1 O3 H5 114.935
H1 O3 C6 104.953 O2 H1 O3 166.000
O3 C6 H7 111.178 O3 C6 H8 106.358
O3 C6 H9 111.448 H5 O3 C6 108.242
H7 C6 H8 109.176 H7 C6 H9 109.803
H8 C6 H9 108.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.321      
2 O -0.522      
3 O -0.477      
4 H 0.192      
5 H 0.162      
6 C -0.691      
7 H 0.333      
8 H 0.344      
9 H 0.337      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.354 0.940 -0.059 2.536
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.039 2.246 -4.639
y 2.246 -19.561 1.643
z -4.639 1.643 -19.656
Traceless
 xyz
x 0.569 2.246 -4.639
y 2.246 -0.213 1.643
z -4.639 1.643 -0.356
Polar
3z2-r2-0.711
x2-y20.522
xy2.246
xz-4.639
yz1.643


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


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