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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/3-21G
 hartrees
Energy at 0K-190.841824
Energy at 298.15K-190.848402
Counterpoise corrected energy-190.826276
CP Energy at 298.15K-190.831936
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy82.502030
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 PBEPBEultrafine/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 3397 3366 1.67      
2 A 3392 3361 22.41      
3 A 3075 3047 214.58      
4 A 3035 3007 22.03      
5 A 3008 2980 60.03      
6 A 2938 2911 79.14      
7 A 1702 1686 63.34      
8 A 1553 1539 3.59      
9 A 1526 1512 4.89      
10 A 1443 1430 4.23      
11 A 1334 1322 24.45      
12 A 1127 1117 8.49      
13 A 1052 1043 109.52      
14 A 971 962 258.80      
15 A 958 949 29.05      
16 A 421 418 105.64      
17 A 394 390 73.01      
18 A 301 298 62.68      
19 A 287 284 27.97      
20 A 249 247 20.94      
21 A 161 160 67.94      

Unscaled Zero Point Vibrational Energy (zpe) 16161.0 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 16013.9 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 PBEPBEultrafine/3-21G
ABC
0.73857 0.19304 0.16115

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 -0.950 0.504 -0.186
O2 -1.764 -0.116 -0.114
O3 0.708 0.771 0.076
H4 -1.991 -0.061 0.866
H5 1.443 1.321 -0.328
C6 1.088 -0.661 0.002
H7 1.760 -0.955 0.829
H8 0.102 -1.149 0.082
H9 1.552 -0.933 -0.965

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H11.02601.69961.58432.53232.35453.24081.97702.9883
O21.02602.63331.00763.52062.90513.74302.14073.5189
O31.69962.63332.93331.00281.48342.15732.01352.1676
H41.58431.00762.93333.88973.25373.85672.48574.0825
H52.53233.52061.00283.88972.04092.57362.84052.3449
C62.35452.90511.48343.25372.04091.10601.10301.1067
H73.24083.74302.15733.85672.57361.10601.82961.8068
H81.97702.14072.01352.48572.84051.10301.82961.8016
H92.98833.51892.16764.08252.34491.10671.80681.8016

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 102.343 H1 O3 H5 137.623
H1 O3 C6 95.171 O2 H1 O3 149.106
O3 C6 H7 112.021 O3 C6 H8 101.227
O3 C6 H9 112.817 H5 O3 C6 108.809
H7 C6 H8 111.837 H7 C6 H9 109.480
H8 C6 H9 109.243
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.336      
2 O -0.651      
3 O -0.520      
4 H 0.301      
5 H 0.351      
6 C -0.436      
7 H 0.193      
8 H 0.233      
9 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.932 0.844 0.684 3.127
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.363 0.179 -4.581
y 0.179 -18.051 -1.345
z -4.581 -1.345 -18.502
Traceless
 xyz
x -1.087 0.179 -4.581
y 0.179 0.882 -1.345
z -4.581 -1.345 0.205
Polar
3z2-r20.410
x2-y2-1.313
xy0.179
xz-4.581
yz-1.345


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.927 0.046 -0.424
y 0.046 2.917 -0.149
z -0.424 -0.149 2.708


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