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All results from a given calculation for H2OCH3OCH3 (water dimethylether dimer)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-230.083956
Energy at 298.15K-230.091839
HF Energy-230.083956
Counterpoise corrected energy-230.082293
CP Energy at 298.15K-230.090079
Counterpoise optimized geometry corrected energy 
CP opt. Energy at 298.15K 
Nuclear repulsion energy133.843191
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 HF/6-31G*
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 4162 3740 133.56      
2 A 4035 3626 185.14      
3 A 3324 2987 29.33      
4 A 3312 2976 42.01      
5 A 3241 2912 132.60      
6 A 3238 2910 15.99      
7 A 3194 2870 63.02      
8 A 3181 2858 46.38      
9 A 1850 1662 97.12      
10 A 1668 1499 0.24      
11 A 1652 1484 7.93      
12 A 1651 1484 9.06      
13 A 1649 1482 2.78      
14 A 1639 1473 0.10      
15 A 1613 1449 12.89      
16 A 1406 1263 12.97      
17 A 1342 1205 159.11      
18 A 1317 1183 13.05      
19 A 1280 1151 0.00      
20 A 1230 1105 50.62      
21 A 1036 930 56.98      
22 A 582 523 177.07      
23 A 446 401 5.10      
24 A 290 261 80.87      
25 A 254 229 40.78      
26 A 210 189 0.41      
27 A 145 130 30.94      
28 A 137 123 99.81      
29 A 55 49 9.69      
30 A 31 28 2.59      

Unscaled Zero Point Vibrational Energy (zpe) 24585.0 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 22089.6 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 HF/6-31G*
ABC
0.34810 0.10290 0.08311

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 1.549 -0.348 0.080
O2 2.489 -0.212 0.133
O3 -0.434 -0.097 -0.211
C4 -0.690 1.255 0.034
C5 -1.510 -0.941 0.066
H6 2.815 -0.384 -0.740
H7 -0.968 1.420 1.072
H8 0.219 1.799 -0.178
H9 -1.488 1.623 -0.606
H10 -1.200 -1.952 -0.157
H11 -1.799 -0.880 1.112
H12 -2.372 -0.691 -0.549

Atom - Atom Distances (Å)
  H1 O2 O3 C4 C5 H6 H7 H8 H9 H10 H11 H12
H10.95152.02022.75443.11651.50823.23202.53913.68573.19143.54383.9859
O20.95152.94583.50284.06630.94683.93673.04874.44254.08934.44944.9321
O32.02022.94581.39781.39573.30372.05752.00552.05582.00772.05662.0548
C42.75443.50281.39782.34473.94551.08721.08011.08743.25322.63732.6376
C53.11654.06631.39572.34474.43442.62343.24942.65071.08091.08741.0874
H61.50820.94683.30373.94554.43444.56543.43794.75004.34884.99615.1988
H73.23203.93672.05751.08722.62344.56541.76461.76843.59662.44673.0095
H82.53913.04872.00551.08013.24943.43791.76461.76914.01053.59413.6127
H93.68574.44252.05581.08742.65074.75001.76841.76913.61483.05252.4778
H103.19144.08932.00773.25321.08094.34883.59664.01053.61481.76581.7656
H113.54384.44942.05662.63731.08744.99612.44673.59413.05251.76581.7677
H123.98594.93212.05482.63761.08745.19883.00953.61272.47781.76561.7677

picture of water dimethylether dimer state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 O2 H6 105.218 H1 O3 C4 105.949
H1 O3 C5 130.784 O2 H1 O3 163.761
O3 C4 H7 111.161 O3 C4 H8 107.375
O3 C4 H9 111.014 O3 C5 H10 107.647
O3 C5 H11 111.231 O3 C5 H12 111.082
C4 O3 C5 114.143 H7 C4 H8 109.013
H7 C4 H9 108.826 H8 C4 H9 109.413
H10 C5 H11 109.055 H10 C5 H12 109.032
H11 C5 H12 108.747
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.480      
2 O -0.922      
3 O -0.620      
4 C -0.173      
5 C -0.164      
6 H 0.424      
7 H 0.151      
8 H 0.193      
9 H 0.149      
10 H 0.181      
11 H 0.152      
12 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.022 0.005 -1.189 3.247
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.103 -0.165 -5.466
y -0.165 -23.696 0.599
z -5.466 0.599 -25.811
Traceless
 xyz
x -4.350 -0.165 -5.466
y -0.165 3.761 0.599
z -5.466 0.599 0.588
Polar
3z2-r21.177
x2-y2-5.407
xy-0.165
xz-5.466
yz0.599


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.731 0.159 -0.115
y 0.159 4.417 0.049
z -0.115 0.049 4.138


<r2> (average value of r2) Å2
<r2> 140.433
(<r2>)1/2 11.850