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

using model chemistry: B3LYPultrafine_cp_opt/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYPultrafine_cp_opt/3-21G
 hartrees
Energy at 0K-191.058053
Energy at 298.15K-191.063622
Nuclear repulsion energy39.424570
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 B3LYPultrafine_cp_opt/3-21G
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 3508 3385 29.73      
2 A 3497 3374 3.87      
3 A 3296 3181 248.75      
4 A 3135 3025 20.34      
5 A 3055 2948 67.19      
6 A 3012 2906 46.79      
7 A 1732 1671 56.01      
8 A 1581 1526 4.19      
9 A 1564 1509 4.62      
10 A 1521 1468 3.72      
11 A 1393 1345 24.32      
12 A 1154 1113 0.01      
13 A 1087 1049 27.05      
14 A 995 960 95.63      
15 A 702 677 151.49      
16 A 413 398 150.92      
17 A 352 340 97.90      
18 A 208 201 5.50      
19 A 111 107 108.75      
20 A 63 61 20.60      
21 A 39 37 8.45      

Unscaled Zero Point Vibrational Energy (zpe) 16208.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 15640.8 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 B3LYPultrafine_cp_opt/3-21G
ABC
1.05227 0.12896 0.11902

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine_cp_opt/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.173 0.102 0.074
O2 2.129 -0.210 0.108
O3 -0.587 0.618 -0.066
H4 2.507 0.083 -0.765
H5 -0.955 1.420 0.391
C6 -1.593 -0.442 -0.004
H7 -2.504 -0.190 -0.563
H8 -1.130 -1.315 -0.470
H9 -1.870 -0.708 1.025

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H11.00641.83931.57662.52312.82023.74362.75883.2898
O21.00642.84490.99573.50033.73094.68173.48974.1334
O31.83932.84493.21690.99351.46332.13952.04832.1441
H41.57660.99573.21693.88764.20325.02293.90834.7954
H52.52313.50030.99353.88762.00742.42932.87212.4010
C62.82023.73091.46334.20322.00741.09851.09181.0987
H73.74364.68172.13955.02292.42931.09851.77771.7870
H82.75883.48972.04833.90832.87211.09181.77771.7753
H93.28984.13342.14414.79542.40101.09871.78701.7753

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 103.893 H1 O3 H5 123.102
H1 O3 C6 116.826 O2 H1 O3 176.941
O3 C6 H7 112.487 O3 C6 H8 105.661
O3 C6 H9 112.856 H5 O3 C6 108.061
H7 C6 H8 108.514 H7 C6 H9 108.841
H8 C6 H9 108.282
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.552      
4 H 0.000      
5 H 0.331      
6 C -0.334      
7 H 0.174      
8 H 0.212      
9 H 0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.813 1.338 -0.735 4.107
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.549 1.534 -4.918
y 1.534 -17.005 1.336
z -4.918 1.336 -18.621
Traceless
 xyz
x -2.736 1.534 -4.918
y 1.534 2.580 1.336
z -4.918 1.336 0.156
Polar
3z2-r20.313
x2-y2-3.544
xy1.534
xz-4.918
yz1.336


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.096 0.102 -0.118
y 0.102 2.513 -0.111
z -0.118 -0.111 1.823


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