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

using model chemistry: PBEPBE_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 PBEPBE_cp_opt/aug-cc-pVTZ
 hartrees
Energy at 0K-192.018841
Energy at 298.15K-192.024016
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 PBEPBE_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 3753 71.57      
2 A 3690 3653 6.27      
3 A 3539 3503 474.86      
4 A 3027 2997 37.65      
5 A 2947 2917 65.53      
6 A 2905 2876 85.37      
7 A 1593 1577 67.50      
8 A 1458 1443 2.89      
9 A 1441 1427 2.20      
10 A 1420 1405 3.58      
11 A 1382 1369 34.00      
12 A 1129 1118 0.15      
13 A 1079 1069 2.80      
14 A 1034 1024 105.12      
15 A 678 671 87.53      
16 A 266 263 190.08      
17 A 200 198 0.20      
18 A 163 161 5.52      
19 A 87 86 3.12      
20 A 77 76 31.58      
21 A 70 70 55.55      

Unscaled Zero Point Vibrational Energy (zpe) 15987.2 cm-1
Scaled (by 0.99) Zero Point Vibrational Energy (zpe) 15827.3 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 PBEPBE_cp_opt/aug-cc-pVTZ
ABC
1.11784 0.12521 0.11699

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.186 0.303 0.000
O2 0.714 0.687 -0.000
O3 -2.037 -0.234 0.000
C4 1.654 -0.382 0.000
H5 -2.468 0.175 -0.768
H6 -2.468 0.175 0.768
H7 2.657 0.064 -0.000
H8 1.564 -1.023 0.896
H9 1.564 -1.023 -0.896

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.97911.92701.96342.41092.41092.85322.37102.3710
O20.97912.90131.42303.31353.31352.03982.10852.1085
O31.92702.90133.69370.97110.97114.70343.79333.7933
C41.96341.42303.69374.22944.22941.09811.10501.1050
H52.41093.31350.97114.22941.53675.18324.52294.2075
H62.41093.31350.97114.22941.53675.18324.20754.5229
H72.85322.03984.70341.09815.18325.18321.78321.7832
H82.37102.10853.79331.10504.52294.20751.78321.7920
H92.37102.10853.79331.10504.20754.52291.78321.7920

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 108.228 H1 O3 H5 107.996
H1 O3 H6 107.995 O2 H1 O3 173.091
O2 C4 H7 107.313 O2 C4 H8 112.426
O2 C4 H9 112.426 H5 O3 H6 104.601
H7 C4 H8 108.071 H7 C4 H9 108.071
H8 C4 H9 108.359
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE_cp_opt/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.339      
4 C 0.000      
5 H 0.169      
6 H 0.169      
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
  -2.543 -0.362 0.000 2.568
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.619 4.390 0.000
y 4.390 -23.127 0.000
z 0.000 0.000 -18.655
Traceless
 xyz
x 8.272 4.390 0.000
y 4.390 -7.490 0.000
z 0.000 0.000 -0.782
Polar
3z2-r2-1.564
x2-y210.508
xy4.390
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.523 0.014 0.000
y 0.014 1.523 -0.000
z 0.000 -0.000 1.601


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