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

using model chemistry: PBEPBE_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 PBEPBE_cp_opt/3-21G
 hartrees
Energy at 0K-190.826280
Energy at 298.15K-190.831843
Nuclear repulsion energy39.159686
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 PBEPBE_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 3394 3363 26.85      
2 A 3379 3349 4.54      
3 A 3127 3099 275.05      
4 A 3065 3038 18.14      
5 A 2974 2947 70.63      
6 A 2928 2901 56.85      
7 A 1700 1685 45.12      
8 A 1535 1521 4.76      
9 A 1514 1500 5.26      
10 A 1473 1459 2.93      
11 A 1362 1350 22.15      
12 A 1119 1109 0.38      
13 A 1058 1048 22.40      
14 A 969 960 94.22      
15 A 713 706 129.63      
16 A 429 425 122.84      
17 A 354 351 113.31      
18 A 215 213 5.87      
19 A 111 110 105.79      
20 A 62 61 18.27      
21 A 31 31 7.59      

Unscaled Zero Point Vibrational Energy (zpe) 15755.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 15611.7 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 PBEPBE_cp_opt/3-21G
ABC
0.99306 0.13243 0.12140

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.136 0.115 0.057
O2 2.101 -0.218 0.111
O3 -0.594 0.648 -0.084
H4 2.492 0.108 -0.758
H5 -0.940 1.382 0.510
C6 -1.560 -0.457 -0.003
H7 -2.552 -0.193 -0.422
H8 -1.130 -1.267 -0.613
H9 -1.701 -0.843 1.028

Atom - Atom Distances (Å)
  H1 O2 O3 H4 H5 C6 H7 H8 H9
H11.02181.81561.58232.47352.75663.73132.73773.1478
O21.02182.83681.00703.45863.67004.68263.47333.9604
O31.81562.83683.20471.00501.47052.15752.05792.1643
H41.58231.00703.20473.87424.16055.06403.87754.6558
H52.47353.45861.00503.87422.00712.43802.88282.4071
C62.75663.67001.47054.16052.00711.10861.10101.1090
H73.73134.68262.15755.06402.43801.10861.79141.8016
H82.73773.47332.05793.87752.88281.10101.79141.7882
H93.14783.96042.16434.65582.40711.10901.80161.7882

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 102.510 H1 O3 H5 119.775
H1 O3 C6 113.633 O2 H1 O3 177.612
O3 C6 H7 112.799 O3 C6 H8 105.414
O3 C6 H9 113.341 H5 O3 C6 106.837
H7 C6 H8 108.338 H7 C6 H9 108.669
H8 C6 H9 108.030
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE_cp_opt/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.000      
2 O 0.000      
3 O -0.532      
4 H 0.000      
5 H 0.336      
6 C -0.382      
7 H 0.178      
8 H 0.220      
9 H 0.179      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.645 1.276 -0.495 3.893
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.697 1.780 -4.948
y 1.780 -17.421 1.632
z -4.948 1.632 -18.504
Traceless
 xyz
x -2.735 1.780 -4.948
y 1.780 2.179 1.632
z -4.948 1.632 0.555
Polar
3z2-r21.111
x2-y2-3.276
xy1.780
xz-4.948
yz1.632


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.912 -0.162 0.038
y -0.162 2.385 -0.185
z 0.038 -0.185 2.207


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