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

using model chemistry: B3LYP/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 B3LYP/6-31G*
 hartrees
Energy at 0K-192.135333
Energy at 298.15K-192.141112
Counterpoise corrected energy-192.131888
CP Energy at 298.15K-192.137346
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy80.922781
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 B3LYP/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 3810 3658 50.92      
2 A 3745 3597 25.17      
3 A 3618 3474 239.18      
4 A 3147 3022 27.79      
5 A 3100 2977 39.74      
6 A 3035 2914 49.09      
7 A 1744 1675 58.17      
8 A 1539 1477 3.67      
9 A 1527 1466 3.09      
10 A 1501 1442 3.64      
11 A 1395 1339 31.64      
12 A 1186 1139 0.64      
13 A 1091 1047 11.38      
14 A 1049 1008 114.79      
15 A 651 626 165.63      
16 A 525 504 17.31      
17 A 285 274 231.91      
18 A 201 193 8.93      
19 A 144 138 115.50      
20 A 108 104 15.27      
21 A 94 91 39.15      

Unscaled Zero Point Vibrational Energy (zpe) 16746.7 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 16081.9 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 B3LYP/6-31G*
ABC
0.81429 0.15895 0.13981

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.102 0.338 0.163
O2 -1.923 -0.111 -0.121
O3 0.769 0.752 0.142
H4 -2.320 -0.418 0.707
H5 0.734 1.166 -0.735
C6 1.280 -0.575 -0.028
H7 2.256 -0.571 -0.529
H8 1.408 -0.987 0.976
H9 0.577 -1.208 -0.583

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.97731.91671.53292.20532.55783.54762.95252.4010
O20.97732.83900.96813.01113.23724.22423.61442.7687
O31.91672.83903.35100.97031.43142.10062.03162.0981
H41.53290.96813.35103.73013.67724.74283.78063.2682
H52.20533.01110.97033.73011.95662.31932.83152.3839
C62.55783.23721.43143.67721.95661.09781.09271.0968
H73.54764.22422.10064.74282.31931.09781.77701.7966
H82.95253.61442.03163.78062.83151.09271.77701.7803
H92.40102.76872.09813.26822.38391.09681.79661.7803

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 103.995 H1 O3 H5 93.824
H1 O3 C6 98.592 O2 H1 O3 156.321
O3 C6 H7 111.637 O3 C6 H8 106.427
O3 C6 H9 111.491 H5 O3 C6 107.560
H7 C6 H8 108.435 H7 C6 H9 109.907
H8 C6 H9 108.802
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.404      
2 O -0.827      
3 O -0.609      
4 H 0.377      
5 H 0.408      
6 C -0.228      
7 H 0.144      
8 H 0.166      
9 H 0.165      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.782 -0.397 0.298 1.850
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.004 -0.244 -5.279
y -0.244 -18.853 -2.799
z -5.279 -2.799 -17.868
Traceless
 xyz
x -2.643 -0.244 -5.279
y -0.244 0.583 -2.799
z -5.279 -2.799 2.061
Polar
3z2-r24.121
x2-y2-2.151
xy-0.244
xz-5.279
yz-2.799


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.667 0.048 -0.212
y 0.048 2.946 -0.257
z -0.212 -0.257 3.084


<r2> (average value of r2) Å2
<r2> 84.626
(<r2>)1/2 9.199