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

using model chemistry: MP2/6-311+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 MP2/6-311+G(3df,2pd)
 hartrees
Energy at 0K-191.853798
Energy at 298.15K-191.859256
HF Energy-191.153837
Counterpoise corrected energy-191.852521
CP Energy at 298.15K-191.857866
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy80.173415
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
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H4 104.599 H1 O3 H5 114.804
H1 O3 C6 105.803 O2 H1 O3 167.361
O3 C6 H7 111.252 O3 C6 H8 106.463
O3 C6 H9 111.525 H5 O3 C6 108.456
H7 C6 H8 109.085 H7 C6 H9 109.696
H8 C6 H9 108.714
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
Primitive
 xyz
x -18.733 2.389 -4.939
y 2.389 -19.057 1.721
z -4.939 1.721 -19.086
Traceless
 xyz
x 0.338 2.389 -4.939
y 2.389 -0.148 1.721
z -4.939 1.721 -0.191
Polar
3z2-r2-0.381
x2-y20.324
xy2.389
xz-4.939
yz1.721


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.734 0.140 -0.071
y 0.140 4.260 0.071
z -0.071 0.071 3.913


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