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

using model chemistry: HF_cp_opt/6-311+G(3df,2pd)

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/6-311+G(3df,2pd)
 hartrees
Energy at 0K-191.155837
Energy at 298.15K-191.161053
Nuclear repulsion energy40.811205
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/6-311+G(3df,2pd)
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 4226 3846 138.66      
2 A 4195 3818 72.04      
3 A 4092 3724 225.70      
4 A 3259 2966 31.09      
5 A 3205 2916 58.60      
6 A 3154 2870 62.03      
7 A 1766 1607 74.02      
8 A 1631 1484 5.14      
9 A 1622 1476 3.47      
10 A 1611 1466 6.21      
11 A 1482 1348 41.05      
12 A 1282 1167 2.34      
13 A 1162 1058 153.76      
14 A 1159 1055 6.67      
15 A 548 498 109.32      
16 A 336 306 111.88      
17 A 272 248 105.24      
18 A 140 127 2.93      
19 A 105 95 123.47      
20 A 48 44 18.87      
21 A 37 34 7.40      

Unscaled Zero Point Vibrational Energy (zpe) 17666.3 cm-1
Scaled (by 0.91) Zero Point Vibrational Energy (zpe) 16076.4 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/6-311+G(3df,2pd)
ABC
1.14666 0.11734 0.10980

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF_cp_opt/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.340 0.099 0.030
O2 2.239 -0.182 0.104
O3 -0.678 0.586 -0.071
H4 2.653 0.043 -0.708
H5 -0.976 1.353 0.382
C6 -1.641 -0.431 0.001
H7 -2.566 -0.136 -0.481
H8 -1.240 -1.290 -0.516
H9 -1.848 -0.711 1.027

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.94462.07821.50732.65633.02793.94602.98053.4376
O20.94463.02100.93923.57243.88894.84013.70304.2233
O32.07823.02103.43430.93891.40252.06222.00772.0639
H41.50730.93923.43434.00844.37785.22654.11934.8829
H52.65633.57240.93894.00841.94162.34282.80292.3321
C63.02793.88891.40254.37781.94161.08411.07911.0839
H73.94604.84012.06225.22652.34281.08411.75781.7671
H82.98053.70302.00774.11932.80291.07911.75781.7565
H93.43764.22332.06394.88292.33211.08391.76711.7565

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 106.284 H1 O3 H5 118.387
H1 O3 C6 119.632 O2 H1 O3 175.819
O3 C6 H7 111.414 O3 C6 H8 107.285
O3 C6 H9 111.564 H5 O3 C6 110.474
H7 C6 H8 108.702 H7 C6 H9 109.188
H8 C6 H9 108.592
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF_cp_opt/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.582      
4 H 0.000      
5 H 0.125      
6 C 0.427      
7 H 0.009      
8 H 0.012      
9 H 0.009      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.901 1.025 -0.697 3.154
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.836 -0.845 -0.754
y -0.845 -10.834 1.459
z -0.754 1.459 -13.242
Traceless
 xyz
x 1.202 -0.845 -0.754
y -0.845 1.205 1.459
z -0.754 1.459 -2.407
Polar
3z2-r2-4.814
x2-y2-0.002
xy-0.845
xz-0.754
yz1.459


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.740 0.174 -0.007
y 0.174 2.929 0.051
z -0.007 0.051 2.610


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