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

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-190.976468
Energy at 298.15K-190.983048
HF Energy-190.976468
Nuclear repulsion energy82.786586
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 M06-2X/3-21G*
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 3655 3462 16.47      
2 A 3599 3409 12.27      
3 A 3331 3155 291.88      
4 A 3150 2984 11.15      
5 A 3121 2956 8.69      
6 A 3038 2877 31.81      
7 A 1742 1650 59.85      
8 A 1601 1516 7.74      
9 A 1558 1476 4.34      
10 A 1496 1417 4.49      
11 A 1384 1311 37.14      
12 A 1180 1118 4.55      
13 A 1087 1029 36.08      
14 A 1010 956 71.72      
15 A 897 850 274.90      
16 A 608 576 19.69      
17 A 349 331 304.05      
18 A 317 300 173.00      
19 A 277 262 11.92      
20 A 253 239 10.81      
21 A 99 94 2.42      

Unscaled Zero Point Vibrational Energy (zpe) 16875.4 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 15984.4 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 M06-2X/3-21G*
ABC
0.73294 0.19210 0.16134

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.948 0.477 0.119
O2 -1.750 -0.076 -0.123
O3 0.776 0.779 0.148
H4 -2.115 -0.417 0.732
H5 0.874 1.226 -0.732
C6 1.085 -0.653 -0.030
H7 1.963 -0.802 -0.664
H8 1.299 -1.039 0.967
H9 0.203 -1.151 -0.437

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H11.00311.75111.59232.14652.33053.27502.84022.0702
O21.00312.68040.98992.99182.89393.82163.37782.2512
O31.75112.68043.18290.99191.47522.13742.06112.0968
H41.59230.98993.18293.71193.29764.32753.47832.6980
H52.14652.99180.99193.71192.01652.30312.86292.4877
C62.33052.89391.47523.29762.01651.09351.09051.0917
H73.27503.82162.13744.32752.30311.09351.77681.8085
H82.84023.37782.06113.47832.86291.09051.77681.7849
H92.07022.25122.09682.69802.48771.09171.80851.7849

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 106.057 H1 O3 H5 99.231
H1 O3 C6 92.093 O2 H1 O3 152.350
O3 C6 H7 111.768 O3 C6 H8 105.927
O3 C6 H9 108.626 H5 O3 C6 108.037
H7 C6 H8 108.885 H7 C6 H9 111.707
H8 C6 H9 109.758
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.356      
2 O -0.721      
3 O -0.575      
4 H 0.323      
5 H 0.368      
6 C -0.386      
7 H 0.191      
8 H 0.218      
9 H 0.225      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.951 -0.422 0.235 2.010
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.092 -0.264 -5.702
y -0.264 -18.158 -2.990
z -5.702 -2.990 -17.818
Traceless
 xyz
x -3.104 -0.264 -5.702
y -0.264 1.297 -2.990
z -5.702 -2.990 1.807
Polar
3z2-r23.614
x2-y2-2.934
xy-0.264
xz-5.702
yz-2.990


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.083 0.096 -0.366
y 0.096 2.658 -0.400
z -0.366 -0.400 2.710


<r2> (average value of r2) Å2
<r2> 75.333
(<r2>)1/2 8.679