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

using model chemistry: B3LYP_cp_opt/aug-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 B3LYP_cp_opt/aug-cc-pVTZ
 hartrees
Energy at 0K-192.249867
Energy at 298.15K-192.254867
Nuclear repulsion energy 
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_cp_opt/aug-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' 3791 3678 7.72      
2 A' 3699 3588 415.84      
3 A' 3092 3000 38.70      
4 A' 2981 2892 77.33      
5 A' 1629 1580 76.02      
6 A' 1510 1465 3.60      
7 A' 1477 1432 3.97      
8 A' 1416 1373 35.14      
9 A' 1111 1078 9.34      
10 A' 1059 1027 104.07      
11 A' 237 230 191.03      
12 A' 155 150 11.22      
13 A' 73 71 38.28      
14 A" 3890 3773 82.84      
15 A" 3021 2930 64.69      
16 A" 1497 1452 2.39      
17 A" 1172 1137 0.54      
18 A" 657 638 104.19      
19 A" 179 173 0.83      
20 A" 82 79 9.18      
21 A" 25 24 46.48      

Unscaled Zero Point Vibrational Energy (zpe) 16376.9 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 15885.6 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_cp_opt/aug-cc-pVTZ
ABC
1.13237 0.12305 0.11520

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.000 0.362 0.000
O2 -0.964 0.273 0.000
O3 1.927 0.743 0.000
C4 -1.303 -1.103 0.000
H5 2.176 1.271 0.766
H6 2.176 1.271 -0.766
H7 -2.390 -1.170 0.000
H8 -0.927 -1.622 -0.889
H9 -0.927 -1.622 0.889

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.96771.96481.96082.47902.47902.83882.36332.3633
O20.96772.92901.41773.38173.38172.02912.09322.0932
O31.96482.92903.72080.96250.96254.72233.81233.8123
C41.96081.41773.72084.28064.28061.08911.09541.0954
H52.47903.38170.96254.28061.53155.23344.55354.2439
H62.47903.38170.96254.28061.53155.23344.24394.5535
H72.83882.02914.72231.08915.23345.23341.77011.7701
H82.36332.09323.81231.09544.55354.24391.77011.7781
H92.36332.09323.81231.09544.24394.55351.77011.7781

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 109.119 H1 O3 H5 111.057
H1 O3 H6 111.057 O2 H1 O3 174.084
O2 C4 H7 107.352 O2 C4 H8 112.167
O2 C4 H9 112.167 H5 O3 H6 105.415
H7 C4 H8 108.247 H7 C4 H9 108.247
H8 C4 H9 108.514
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.371      
4 C 0.000      
5 H 0.185      
6 H 0.185      
7 H 0.000      
8 H 0.000      
9 H 0.000      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.558 0.716 0.000 2.656
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.593 7.092 0.000
y 7.092 -17.245 0.000
z 0.000 0.000 -18.452
Traceless
 xyz
x 0.256 7.092 0.000
y 7.092 0.777 0.000
z 0.000 0.000 -1.033
Polar
3z2-r2-2.067
x2-y2-0.348
xy7.092
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.409 -0.020 0.000
y -0.020 1.454 0.000
z 0.000 0.000 1.543


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