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All results from a given calculation for CH3OHH2O (methanol water dimer)

using model chemistry: B2PLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-192.093835
Energy at 298.15K-192.099006
HF Energy-191.870868
Nuclear repulsion energy78.874993
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 B2PLYP/cc-pVTZ
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' 3820 3665 7.23      
2 A' 3732 3581 415.70      
3 A' 3121 2994 45.54      
4 A' 3006 2884 73.93      
5 A' 1647 1580 70.06      
6 A' 1529 1467 2.54      
7 A' 1494 1433 5.13      
8 A' 1446 1388 35.53      
9 A' 1127 1081 8.91      
10 A' 1080 1036 97.25      
11 A' 259 248 210.88      
12 A' 177 170 9.85      
13 A' 70 67 36.73      
14 A" 3925 3766 72.76      
15 A" 3050 2927 75.65      
16 A" 1511 1450 1.25      
17 A" 1185 1136 0.94      
18 A" 693 665 106.36      
19 A" 186 179 1.10      
20 A" 81 78 37.87      
21 A" 65 62 25.68      

Unscaled Zero Point Vibrational Energy (zpe) 16602.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 15928.1 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 B2PLYP/cc-pVTZ
ABC
1.09250 0.12870 0.11963

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.433 0.000
O2 -0.963 0.408 0.000
O3 1.989 0.489 0.000
C4 -1.378 -0.940 0.000
H5 2.303 0.979 0.763
H6 2.303 0.979 -0.763
H7 -2.466 -0.948 0.000
H8 -1.041 -1.488 -0.885
H9 -1.041 -1.488 0.885

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96291.98991.94512.48682.48682.82662.35772.3577
O20.96292.95281.41013.40193.40192.02482.09412.0941
O31.98992.95283.65780.95930.95934.68123.72493.7249
C41.94511.41013.65784.22074.22071.08791.09461.0946
H52.48683.40190.95934.22071.52555.20014.47054.1576
H62.48683.40190.95934.22071.52555.20014.15764.4705
H72.82662.02484.68121.08795.20015.20011.76231.7623
H82.35772.09413.72491.09464.47054.15761.76231.7702
H92.35772.09413.72491.09464.15764.47051.76231.7702

picture of methanol water dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 C4 108.633 H1 O3 H5 109.977
H1 O3 H6 109.977 O2 H1 O3 179.877
O2 C4 H7 107.605 O2 C4 H8 112.847
O2 C4 H9 112.847 H5 O3 H6 105.322
H7 C4 H8 107.697 H7 C4 H9 107.697
H8 C4 H9 107.912
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.225      
2 O -0.419      
3 O -0.438      
4 C -0.037      
5 H 0.243      
6 H 0.243      
7 H 0.088      
8 H 0.048      
9 H 0.048      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.220 0.486 0.000
y 0.486 3.992 0.000
z 0.000 0.000 3.689


<r2> (average value of r2) Å2
<r2> 96.802
(<r2>)1/2 9.839