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

using model chemistry: PBEPBE_cp/6-311+G(3df,2pd)

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/6-311+G(3df,2pd)
 hartrees
Energy at 0K-192.011610
Energy at 298.15K-192.003638
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/6-311+G(3df,2pd)
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 3815 3777 72.61      
2 A 3716 3678 9.49      
3 A 3566 3531 477.11      
4 A 3030 3000 37.91      
5 A 2950 2920 65.82      
6 A 2907 2877 83.32      
7 A 1595 1579 69.92      
8 A 1460 1445 2.92      
9 A 1443 1428 2.28      
10 A 1423 1409 3.26      
11 A 1388 1374 38.04      
12 A 1132 1121 0.19      
13 A 1083 1072 3.78      
14 A 1040 1029 104.91      
15 A 695 688 102.26      
16 A 277 275 196.41      
17 A 202 200 0.18      
18 A 166 165 4.97      
19 A 89 88 1.61      
20 A 80 79 34.26      
21 A 69 69 59.85      

Unscaled Zero Point Vibrational Energy (zpe) 16061.5 cm-1
Scaled (by 0.99) Zero Point Vibrational Energy (zpe) 15900.9 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/6-311+G(3df,2pd)
ABC
1.12829 0.12525 0.11713

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.188 0.294 0.000
O2 0.710 0.682 -0.000
O3 -2.038 -0.236 0.000
C4 1.655 -0.378 -0.000
H5 -2.458 0.183 -0.767
H6 -2.458 0.183 0.767
H7 2.655 0.075 -0.000
H8 1.571 -1.019 0.896
H9 1.570 -1.020 -0.896

Atom - Atom Distances (Å)
  H1 O2 O3 C4 H5 H6 H7 H8 H9
H10.97801.92461.96142.39922.39932.85132.36992.3699
O20.97802.89701.42053.29753.29772.03802.10672.1067
O31.92462.89703.69600.96990.96994.70363.79973.7995
C41.96141.42053.69604.22194.22211.09791.10491.1049
H52.39923.29750.96994.22191.53445.17184.52134.2061
H62.39933.29770.96994.22211.53445.17214.20654.5212
H72.85132.03804.70361.09795.17185.17211.78241.7824
H82.36992.10673.79971.10494.52134.20651.78241.7912
H92.36992.10673.79951.10494.20614.52121.78241.7912

picture of methanol water dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.308      
2 O -0.602      
3 O -0.329      
4 C 0.249      
5 H 0.159      
6 H 0.159      
7 H 0.019      
8 H 0.019      
9 H 0.019      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.522 -0.329 0.000 2.543
CHELPG        
AIM        
ESP        


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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


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