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

using model chemistry: HF_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 HF_cp_opt/6-31+G**
 hartrees
Energy at 0K-191.091023
Energy at 298.15K-191.096333
Nuclear repulsion energy40.698919
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 HF_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 4244 3837 149.19      
2 A 4194 3792 72.76      
3 A 4092 3700 227.48      
4 A 3299 2983 32.65      
5 A 3240 2930 65.75      
6 A 3181 2877 65.41      
7 A 1757 1589 97.26      
8 A 1637 1480 4.07      
9 A 1628 1472 2.60      
10 A 1617 1462 10.39      
11 A 1473 1332 44.17      
12 A 1282 1159 2.80      
13 A 1165 1053 175.31      
14 A 1153 1042 3.87      
15 A 570 515 157.62      
16 A 356 322 144.02      
17 A 277 251 131.00      
18 A 153 138 3.49      
19 A 121 110 153.26      
20 A 50 45 23.88      
21 A 39 35 7.38      

Unscaled Zero Point Vibrational Energy (zpe) 17762.8 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 16061.1 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 HF_cp_opt/6-31+G**
ABC
1.13280 0.11810 0.11034

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.328 0.098 0.033
O2 2.230 -0.184 0.103
O3 -0.676 0.591 -0.071
H4 2.655 0.048 -0.706
H5 -0.975 1.361 0.382
C6 -1.636 -0.436 0.001
H7 -2.561 -0.144 -0.486
H8 -1.225 -1.291 -0.515
H9 -1.842 -0.714 1.029

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.94812.06601.51962.64973.01183.93152.95783.4211
O20.94813.01270.94233.56943.87604.82823.68074.2104
O32.06603.01273.43380.94281.40712.06572.00992.0675
H41.51960.94233.43384.01084.37545.22454.10864.8802
H52.64973.56940.94284.01081.95172.35262.81112.3402
C63.01183.87601.40714.37541.95171.08571.08051.0855
H73.93154.82822.06575.22452.35261.08571.76201.7718
H82.95783.68072.00994.10862.81111.08051.76201.7606
H93.42114.21042.06754.88022.34021.08551.77181.7606

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 106.996 H1 O3 H5 118.579
H1 O3 C6 119.046 O2 H1 O3 176.207
O3 C6 H7 111.273 O3 C6 H8 107.069
O3 C6 H9 111.431 H5 O3 C6 110.763
H7 C6 H8 108.860 H7 C6 H9 109.380
H8 C6 H9 108.741
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.603      
4 H 0.000      
5 H 0.354      
6 C -0.092      
7 H 0.105      
8 H 0.132      
9 H 0.105      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.148 1.113 -0.808 3.435
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.540 -0.807 -0.828
y -0.807 -10.717 1.563
z -0.828 1.563 -13.377
Traceless
 xyz
x 1.507 -0.807 -0.828
y -0.807 1.242 1.563
z -0.828 1.563 -2.748
Polar
3z2-r2-5.497
x2-y20.177
xy-0.807
xz-0.828
yz1.563


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.403 0.104 -0.005
y 0.104 2.585 0.058
z -0.005 0.058 2.335


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