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

using model chemistry: B3LYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at B3LYP/TZVP
 hartrees
Energy at 0K-192.240877
Energy at 298.15K-192.246023
HF Energy-192.240877
Counterpoise corrected energy 
CP Energy at 298.15K 
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy78.519758
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/TZVP
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' 3792 3661 9.36      
2 A' 3690 3563 391.81      
3 A' 3096 2989 47.74      
4 A' 2975 2873 77.94      
5 A' 1611 1555 69.90      
6 A' 1509 1457 2.38      
7 A' 1488 1436 9.84      
8 A' 1419 1369 37.19      
9 A' 1114 1076 16.76      
10 A' 1060 1023 103.53      
11 A' 247 238 234.68      
12 A' 179 173 21.06      
13 A' 75 73 39.11      
14 A" 3898 3763 70.25      
15 A" 3013 2909 85.10      
16 A" 1490 1439 1.24      
17 A" 1171 1131 0.39      
18 A" 690 666 162.84      
19 A" 191 184 1.46      
20 A" 83 80 20.99      
21 A" 56 54 39.83      

Unscaled Zero Point Vibrational Energy (zpe) 16423.2 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 15855.0 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/TZVP
ABC
1.09800 0.12688 0.11818

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.381 0.000
O2 -0.964 0.292 0.000
O3 1.910 0.716 0.000
C4 -1.293 -1.085 0.000
H5 2.201 1.221 0.767
H6 2.201 1.221 -0.767
H7 -2.381 -1.162 0.000
H8 -0.916 -1.607 -0.889
H9 -0.916 -1.607 0.889

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96821.93931.95512.47682.47682.83702.36252.3625
O20.96822.90531.41543.38613.38612.02952.09672.0967
O31.93932.90533.67480.96260.96264.68363.76453.7645
C41.95511.41543.67484.25544.25541.09031.09741.0974
H52.47683.38610.96264.25541.53325.22024.52184.2097
H62.47683.38610.96264.25541.53325.22024.20974.5218
H72.83702.02954.68361.09035.22025.22021.77011.7701
H82.36252.09673.76451.09744.52184.20971.77011.7776
H92.36252.09673.76451.09744.20974.52181.77011.7776

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 108.760 H1 O3 H5 112.810
H1 O3 H6 112.810 O2 H1 O3 175.386
O2 C4 H7 107.476 O2 C4 H8 112.490
O2 C4 H9 112.490 H5 O3 H6 105.569
H7 C4 H8 108.017 H7 C4 H9 108.017
H8 C4 H9 108.170
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.277      
2 O -0.441      
3 O -0.549      
4 C -0.158      
5 H 0.289      
6 H 0.289      
7 H 0.114      
8 H 0.089      
9 H 0.089      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.110 0.656 0.000 3.178
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.900 7.795 0.000
y 7.795 -17.353 0.000
z 0.000 0.000 -18.285
Traceless
 xyz
x 1.919 7.795 0.000
y 7.795 -0.261 0.000
z 0.000 0.000 -1.658
Polar
3z2-r2-3.317
x2-y21.453
xy7.795
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.081 0.441 0.000
y 0.441 3.713 0.000
z 0.000 0.000 3.628


<r2> (average value of r2) Å2
<r2> 98.049
(<r2>)1/2 9.902