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

using model chemistry: B3LYP_cp_opt/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 B3LYP_cp_opt/3-21G
 hartrees
Energy at 0K-191.058049
Energy at 298.15K-191.063645
Nuclear repulsion energy39.428874
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 B3LYP_cp_opt/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 3508 3384 29.34      
2 A 3499 3376 4.56      
3 A 3294 3178 252.73      
4 A 3134 3024 20.94      
5 A 3055 2948 67.05      
6 A 3012 2906 47.07      
7 A 1732 1671 56.91      
8 A 1581 1526 4.33      
9 A 1564 1509 4.67      
10 A 1521 1468 3.88      
11 A 1394 1345 24.64      
12 A 1154 1113 0.01      
13 A 1087 1049 27.21      
14 A 996 961 96.11      
15 A 704 679 145.16      
16 A 421 406 151.38      
17 A 352 340 103.03      
18 A 208 200 4.98      
19 A 113 109 109.30      
20 A 67 65 18.27      
21 A 42 41 9.70      

Unscaled Zero Point Vibrational Energy (zpe) 16219.2 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 15649.9 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 B3LYP_cp_opt/3-21G
ABC
1.08581 0.12711 0.11793

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP_cp_opt/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.181 0.088 0.068
O2 2.143 -0.205 0.111
O3 -0.580 0.603 -0.073
H4 2.508 0.043 -0.781
H5 -0.914 1.407 0.405
C6 -1.614 -0.429 -0.000
H7 -2.534 -0.140 -0.526
H8 -1.192 -1.305 -0.497
H9 -1.868 -0.707 1.032

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H11.00661.83981.57682.49802.84323.76932.80963.2949
O21.00662.84600.99593.46813.76534.72073.56434.1458
O31.83982.84603.21720.99341.46302.13932.04852.1440
H41.57680.99593.21723.86994.22215.05213.94894.7961
H52.49803.46810.99343.86992.00682.42632.87212.4030
C62.84323.76531.46304.22212.00681.09861.09191.0985
H73.76934.72072.13935.05212.42631.09861.77751.7868
H82.80963.56432.04853.94892.87211.09191.77751.7753
H93.29494.14582.14404.79612.40301.09851.78681.7753

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 103.887 H1 O3 H5 120.731
H1 O3 C6 118.380 O2 H1 O3 177.902
O3 C6 H7 112.490 O3 C6 H8 105.685
O3 C6 H9 112.879 H5 O3 C6 108.038
H7 C6 H8 108.472 H7 C6 H9 108.827
H8 C6 H9 108.287
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.561      
4 H 0.000      
5 H 0.338      
6 C -0.316      
7 H 0.165      
8 H 0.207      
9 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.835 1.262 -0.740 4.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.584 -0.730 -0.702
y -0.730 -10.417 1.416
z -0.702 1.416 -13.063
Traceless
 xyz
x 1.156 -0.730 -0.702
y -0.730 1.407 1.416
z -0.702 1.416 -2.563
Polar
3z2-r2-5.126
x2-y2-0.167
xy-0.730
xz-0.702
yz1.416


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.059 0.158 -0.068
y 0.158 2.481 0.207
z -0.068 0.207 1.896


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