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

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at G4
 hartrees
Energy at 0K-192.053380
Energy at 298.15K-192.045969
HF Energy-192.167698
Nuclear repulsion energy80.958960
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(2df,p)
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 3872 3737 53.00      
2 A 3823 3689 32.27      
3 A 3688 3558 238.45      
4 A 3119 3010 24.40      
5 A 3081 2973 34.25      
6 A 3014 2909 44.63      
7 A 1697 1638 50.07      
8 A 1510 1458 3.69      
9 A 1496 1444 3.33      
10 A 1479 1427 1.67      
11 A 1384 1336 28.22      
12 A 1179 1138 0.64      
13 A 1087 1049 5.76      
14 A 1041 1005 104.71      
15 A 623 601 135.70      
16 A 494 477 18.44      
17 A 270 261 195.62      
18 A 197 190 2.54      
19 A 153 148 96.36      
20 A 113 109 4.31      
21 A 99 96 29.58      

Unscaled Zero Point Vibrational Energy (zpe) 16709.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 16124.7 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(2df,p)
ABC
0.80996 0.15843 0.13921

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -1.121 0.363 0.141
O2 -1.933 -0.101 -0.119
O3 0.782 0.750 0.144
H4 -2.275 -0.453 0.708
H5 0.797 1.183 -0.716
C6 1.269 -0.581 -0.031
H7 2.243 -0.594 -0.534
H8 1.393 -1.004 0.970
H9 0.555 -1.199 -0.586

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.97031.94171.52252.25452.57503.56212.97892.4034
O20.97032.85680.96153.07443.23844.22523.61392.7587
O31.94172.85683.33280.96271.42802.09832.03232.0942
H41.52250.96153.33283.75963.62184.68763.71823.1993
H52.25453.07440.96273.75961.95002.29842.82412.3977
C62.57503.23841.42803.62181.95001.09701.09281.0963
H73.56214.22522.09834.68762.29841.09701.77531.7945
H82.97893.61392.03233.71822.82411.09281.77531.7785
H92.40342.75872.09423.19932.39771.09631.79451.7785

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 104.365 H1 O3 H5 113.783
H1 O3 C6 107.767 O2 H1 O3 170.876
O3 C6 H7 112.054 O3 C6 H8 106.747
O3 C6 H9 112.623 H5 O3 C6 108.839
H7 C6 H8 108.394 H7 C6 H9 108.784
H8 C6 H9 108.067
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability