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

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-192.068740
Energy at 298.15K-192.074613
Nuclear repulsion energy81.334015
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 B1B95/6-31G**
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 3933 3755 55.98      
2 A 3870 3695 34.19      
3 A 3744 3575 195.17      
4 A 3158 3016 26.04      
5 A 3114 2973 36.76      
6 A 3039 2902 46.55      
7 A 1692 1615 56.74      
8 A 1525 1456 4.13      
9 A 1511 1443 2.77      
10 A 1488 1421 2.71      
11 A 1378 1316 31.22      
12 A 1189 1135 1.27      
13 A 1098 1048 6.74      
14 A 1066 1018 118.59      
15 A 634 605 175.22      
16 A 506 483 24.64      
17 A 272 260 215.03      
18 A 194 185 19.56      
19 A 179 171 44.02      
20 A 143 137 89.40      
21 A 104 99 27.18      

Unscaled Zero Point Vibrational Energy (zpe) 16917.8 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 16153.1 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 B1B95/6-31G**
ABC
0.80311 0.16158 0.14139

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.113 0.375 0.173
O2 -1.911 -0.091 -0.118
O3 0.809 0.753 0.141
H4 -2.288 -0.441 0.693
H5 0.781 1.163 -0.730
C6 1.233 -0.592 -0.029
H7 2.182 -0.656 -0.572
H8 1.385 -1.002 0.969
H9 0.472 -1.190 -0.540

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.96921.95861.52212.24102.54483.53162.96152.3386
O20.96922.85970.96073.03203.18484.15683.58902.6581
O31.95862.85973.36430.96291.42052.09322.02482.0871
H41.52210.96073.36433.74353.59694.65023.72593.1139
H52.24103.03200.96293.74351.94212.30112.81762.3809
C62.54483.18481.42053.59691.94211.09531.09071.0948
H73.53164.15682.09324.65022.30111.09531.76951.7919
H82.96153.58902.02483.72592.81761.09071.76951.7745
H92.33862.65812.08713.11392.38091.09481.79191.7745

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 104.130 H1 O3 H5 93.937
H1 O3 C6 96.420 O2 H1 O3 153.671
O3 C6 H7 111.971 O3 C6 H8 106.744
O3 C6 H9 111.500 H5 O3 C6 107.595
H7 C6 H8 108.089 H7 C6 H9 109.803
H8 C6 H9 108.574
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.320      
2 O -0.661      
3 O -0.546      
4 H 0.305      
5 H 0.331      
6 C -0.140      
7 H 0.116      
8 H 0.138      
9 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.584 -0.471 0.277 1.676
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.936 -0.060 -5.220
y -0.060 -18.578 -2.793
z -5.220 -2.793 -17.793
Traceless
 xyz
x -2.751 -0.060 -5.220
y -0.060 0.787 -2.793
z -5.220 -2.793 1.964
Polar
3z2-r23.927
x2-y2-2.358
xy-0.060
xz-5.220
yz-2.793


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.646 0.041 -0.194
y 0.041 3.036 -0.249
z -0.194 -0.249 3.109


<r2> (average value of r2) Å2
<r2> 83.609
(<r2>)1/2 9.144