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All results from a given calculation for CH3OCH3 (Dimethyl ether)

using model chemistry: PBE1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/6-311G*
 hartrees
Energy at 0K-154.873614
Energy at 298.15K-154.880334
HF Energy-154.873614
Nuclear repulsion energy84.359189
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 PBE1PBE/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3147 3016 30.72 97.54 0.34 0.51
2 A1 2993 2869 67.97 239.57 0.03 0.06
3 A1 1537 1473 2.85 14.67 0.75 0.85
4 A1 1506 1444 0.27 11.79 0.75 0.86
5 A1 1284 1231 5.89 2.02 0.57 0.73
6 A1 986 945 40.31 7.80 0.54 0.70
7 A1 419 402 2.16 0.51 0.04 0.07
8 A2 3036 2910 0.00 19.43 0.75 0.86
9 A2 1496 1434 0.00 30.84 0.75 0.86
10 A2 1178 1129 0.00 5.80 0.75 0.86
11 A2 224 214 0.00 0.49 0.75 0.86
12 B1 3031 2905 170.98 113.55 0.75 0.86
13 B1 1506 1443 17.25 0.01 0.75 0.86
14 B1 1210 1160 6.81 1.70 0.75 0.86
15 B1 260 249 6.76 0.04 0.75 0.86
16 B2 3145 3015 36.22 79.50 0.75 0.86
17 B2 2979 2855 60.88 2.06 0.75 0.86
18 B2 1514 1452 18.64 4.41 0.75 0.86
19 B2 1475 1414 2.04 7.60 0.75 0.86
20 B2 1238 1187 122.05 0.23 0.75 0.86
21 B2 1148 1100 22.82 3.51 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17655.7 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 16923.0 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 PBE1PBE/6-311G*
ABC
1.31433 0.34004 0.30106

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.589
C2 0.000 1.159 -0.194
C3 0.000 -1.159 -0.194
H4 0.000 2.013 0.484
H5 0.000 -2.013 0.484
H6 0.891 1.216 -0.837
H7 -0.891 1.216 -0.837
H8 -0.891 -1.216 -0.837
H9 0.891 -1.216 -0.837

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.39851.39852.01592.01592.07522.07522.07522.0752
C21.39852.31801.09083.24401.10081.10082.61722.6172
C31.39852.31803.24401.09082.61722.61721.10081.1008
H42.01591.09083.24404.02651.78231.78233.60143.6014
H52.01593.24401.09084.02653.60143.60141.78231.7823
H62.07521.10082.61721.78233.60141.78303.01582.4323
H72.07521.10082.61721.78233.60141.78302.43233.0158
H82.07522.61721.10083.60141.78233.01582.43231.7830
H92.07522.61721.10083.60141.78232.43233.01581.7830

picture of Dimethyl ether state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H4 107.521 O1 C2 H6 111.714
O1 C2 H7 111.714 O1 C3 H5 107.521
O1 C3 H8 111.714 O1 C3 H9 111.714
C2 O1 C3 111.943 H4 C2 H6 108.827
H4 C2 H7 108.827 H5 C3 H8 108.827
H5 C3 H9 108.827 H6 C2 H7 108.168
H8 C3 H9 108.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.319      
2 C -0.463      
3 C -0.463      
4 H 0.226      
5 H 0.226      
6 H 0.198      
7 H 0.198      
8 H 0.198      
9 H 0.198      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.282 1.282
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.222 0.000 0.000
y 0.000 -17.195 0.000
z 0.000 0.000 -21.150
Traceless
 xyz
x -1.049 0.000 0.000
y 0.000 3.491 0.000
z 0.000 0.000 -2.441
Polar
3z2-r2-4.883
x2-y2-3.027
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.860 0.000 0.000
y 0.000 4.738 0.000
z 0.000 0.000 3.789


<r2> (average value of r2) Å2
<r2> 52.010
(<r2>)1/2 7.212