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All results from a given calculation for H2OCH3OH (water methanol dimer)

using model chemistry: MP2_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 MP2_cp/6-311+G(3df,2pd)
 hartrees
Energy at 0K-191.851427
Energy at 298.15K-191.843616
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 MP2/6-311+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 3957 3759 105.52      
2 A 3899 3704 53.76      
3 A 3729 3543 387.27      
4 A 3201 3041 11.37      
5 A 3152 2994 27.65      
6 A 3070 2917 43.18      
7 A 1661 1578 43.17      
8 A 1533 1457 6.31      
9 A 1524 1447 4.37      
10 A 1497 1422 3.12      
11 A 1372 1303 23.31      
12 A 1193 1134 0.41      
13 A 1089 1035 1.64      
14 A 1062 1009 126.08      
15 A 662 629 89.33      
16 A 380 361 46.11      
17 A 312 296 153.17      
18 A 192 182 4.83      
19 A 120 114 113.61      
20 A 51 48 7.93      
21 A 42 40 23.20      

Unscaled Zero Point Vibrational Energy (zpe) 16848.3 cm-1
Scaled (by 0.95) Zero Point Vibrational Energy (zpe) 16005.9 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 MP2/6-311+G(3df,2pd)
ABC
0.90815 0.14545 0.13026

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2pd)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.143 0.222 -0.020
O2 2.002 -0.208 0.097
O3 -0.686 0.704 -0.096
H4 2.556 0.172 -0.585
H5 -0.978 1.285 0.609
C6 -1.414 -0.519 -0.003
H7 -2.480 -0.356 -0.151
H8 -1.040 -1.160 -0.795
H9 -1.247 -1.012 0.953

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H10.96781.89231.52342.45432.66173.67112.69692.8604
O20.96782.84460.95763.37233.43144.49163.30983.4552
O31.89232.84463.32160.95921.42622.08482.02152.0881
H41.52340.95763.32163.89334.07175.08283.84084.2706
H52.45433.37230.95923.89331.95452.35102.81982.3385
C62.66173.43141.42624.07171.95451.08911.08441.0892
H73.67114.49162.08485.08282.35101.08911.77041.7810
H82.69693.30982.02153.84082.81981.08441.77041.7664
H92.86043.45522.08814.27062.33851.08921.78101.7664

picture of water methanol dimer state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at MP2/6-311+G(3df,2pd) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.312      
2 O -0.436      
3 O -0.633      
4 H 0.136      
5 H 0.140      
6 C 0.412      
7 H 0.017      
8 H 0.026      
9 H 0.027      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.419 0.950 -0.106 2.601
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