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

using model chemistry: HF_cp_opt/6-31G*

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/6-31G*
 hartrees
Energy at 0K-191.053500
Energy at 298.15K-191.058859
Nuclear repulsion energy40.709667
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/6-31G*
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 4160 3738 114.27      
2 A 4116 3698 56.98      
3 A 4024 3616 204.39      
4 A 3317 2980 40.10      
5 A 3256 2925 79.94      
6 A 3201 2876 56.66      
7 A 1855 1667 102.94      
8 A 1662 1493 2.75      
9 A 1650 1483 1.70      
10 A 1637 1471 11.66      
11 A 1510 1356 49.95      
12 A 1290 1159 3.46      
13 A 1176 1057 154.28      
14 A 1172 1053 14.00      
15 A 587 528 154.09      
16 A 382 343 147.14      
17 A 286 257 121.87      
18 A 157 141 1.98      
19 A 110 99 134.07      
20 A 57 51 20.75      
21 A 42 38 9.05      

Unscaled Zero Point Vibrational Energy (zpe) 17824.1 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 16015.0 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/6-31G*
ABC
1.16752 0.11774 0.11049

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.317 0.062 0.045
O2 2.235 -0.182 0.106
O3 -0.662 0.578 -0.081
H4 2.608 0.047 -0.733
H5 -0.923 1.329 0.433
C6 -1.648 -0.419 0.003
H7 -2.597 -0.076 -0.399
H8 -1.305 -1.257 -0.587
H9 -1.796 -0.753 1.026

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.95212.04831.50852.60193.00403.94083.00223.3633
O20.95213.00040.94673.51583.89184.85913.76414.1737
O32.04833.00043.37620.94691.40542.06722.00912.0696
H41.50850.94673.37623.93334.34515.21734.12804.8097
H52.60193.51580.94693.93331.94092.33842.80582.3339
C63.00403.89181.40544.34511.94091.08591.08041.0857
H73.94084.85912.06725.21732.33841.08591.76001.7692
H83.00223.76412.00914.12802.80581.08041.76001.7593
H93.36334.17372.06964.80972.33391.08571.76921.7593

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 105.203 H1 O3 H5 115.634
H1 O3 C6 119.709 O2 H1 O3 179.735
O3 C6 H7 111.510 O3 C6 H8 107.121
O3 C6 H9 111.712 H5 O3 C6 109.658
H7 C6 H8 108.668 H7 C6 H9 109.111
H8 C6 H9 108.618
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.731      
4 H 0.000      
5 H 0.437      
6 C -0.165      
7 H 0.142      
8 H 0.175      
9 H 0.142      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.214 1.066 -0.682 3.454
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.591 -0.585 -0.847
y -0.585 -10.698 1.638
z -0.847 1.638 -13.068
Traceless
 xyz
x 1.292 -0.585 -0.847
y -0.585 1.131 1.638
z -0.847 1.638 -2.423
Polar
3z2-r2-4.846
x2-y20.107
xy-0.585
xz-0.847
yz1.638


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.100 0.064 -0.029
y 0.064 2.364 0.140
z -0.029 0.140 2.080


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