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

using model chemistry: HF_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 HF_cp_opt/3-21G
 hartrees
Energy at 0K-189.994056
Energy at 298.15K-189.999682
Nuclear repulsion energy39.980796
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/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 3905 3536 54.11      
2 A 3884 3518 19.81      
3 A 3730 3378 252.01      
4 A 3302 2990 27.45      
5 A 3243 2937 66.32      
6 A 3195 2893 35.82      
7 A 1841 1667 101.44      
8 A 1695 1535 3.12      
9 A 1683 1524 3.93      
10 A 1637 1482 5.21      
11 A 1485 1345 39.74      
12 A 1256 1138 1.19      
13 A 1162 1052 38.44      
14 A 1094 991 114.07      
15 A 707 640 214.15      
16 A 420 380 188.40      
17 A 346 313 125.52      
18 A 191 173 4.79      
19 A 111 100 135.00      
20 A 71 65 22.49      
21 A 48 44 16.05      

Unscaled Zero Point Vibrational Energy (zpe) 17502.3 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 15850.1 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/3-21G
ABC
1.14255 0.12458 0.11599

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.226 0.067 0.050
O2 2.162 -0.198 0.103
O3 -0.594 0.583 -0.053
H4 2.585 0.052 -0.728
H5 -0.913 1.421 0.306
C6 -1.632 -0.422 -0.004
H7 -2.496 -0.135 -0.592
H8 -1.206 -1.319 -0.424
H9 -1.945 -0.627 1.013

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.97391.89531.56572.54422.90093.78252.83933.3863
O20.97392.86920.96603.48063.80254.70973.58834.2283
O31.89532.86923.29310.96541.44582.10252.03212.1037
H41.56570.96603.29313.89534.30535.08584.04264.9004
H52.54423.48060.96543.89532.00252.39412.85052.3997
C62.90093.80251.44584.30532.00251.08361.07851.0835
H73.78254.70972.10255.08582.39411.08361.75941.7672
H82.83933.58832.03214.04262.85051.07851.75941.7582
H93.38634.22832.10374.90042.39971.08351.76721.7582

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 107.625 H1 O3 H5 122.181
H1 O3 C6 119.909 O2 H1 O3 179.983
O3 C6 H7 111.645 O3 C6 H8 106.312
O3 C6 H9 111.755 H5 O3 C6 110.722
H7 C6 H8 108.930 H7 C6 H9 109.265
H8 C6 H9 108.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.688      
4 H 0.000      
5 H 0.377      
6 C -0.251      
7 H 0.173      
8 H 0.217      
9 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.937 1.323 -1.029 4.279
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -9.936 -0.782 -0.581
y -0.782 -10.079 1.199
z -0.581 1.199 -13.244
Traceless
 xyz
x 1.725 -0.782 -0.581
y -0.782 1.511 1.199
z -0.581 1.199 -3.236
Polar
3z2-r2-6.472
x2-y20.143
xy-0.782
xz-0.581
yz1.199


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.910 0.095 -0.038
y 0.095 2.353 0.158
z -0.038 0.158 1.773


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