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

using model chemistry: wB97X-D/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/3-21G*
 hartrees
Energy at 0K-154.125406
Energy at 298.15K-154.132131
HF Energy-154.125406
Nuclear repulsion energy82.636313
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 wB97X-D/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 A1 3166 3001 24.23 86.25 0.35 0.51
2 A1 3018 2860 42.92 188.49 0.04 0.07
3 A1 1594 1511 1.59 32.83 0.75 0.86
4 A1 1540 1459 0.86 13.06 0.70 0.82
5 A1 1262 1196 0.03 5.14 0.68 0.81
6 A1 912 864 21.66 11.98 0.35 0.52
7 A1 419 397 4.47 0.50 0.04 0.08
8 A2 3059 2899 0.00 14.99 0.75 0.86
9 A2 1554 1473 0.00 52.65 0.75 0.86
10 A2 1166 1105 0.00 11.45 0.75 0.86
11 A2 247 234 0.00 0.23 0.75 0.86
12 B1 3056 2897 140.27 93.11 0.75 0.86
13 B1 1564 1482 20.17 1.03 0.75 0.86
14 B1 1199 1137 1.69 4.31 0.75 0.86
15 B1 258 245 8.63 0.03 0.75 0.86
16 B2 3163 2998 22.47 73.54 0.75 0.86
17 B2 3008 2851 40.66 1.81 0.75 0.86
18 B2 1575 1493 17.68 4.90 0.75 0.86
19 B2 1498 1420 3.78 10.91 0.75 0.86
20 B2 1180 1118 57.96 0.47 0.75 0.86
21 B2 1112 1053 37.07 5.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17774.8 cm-1
Scaled (by 0.9478) Zero Point Vibrational Energy (zpe) 16847.0 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 wB97X-D/3-21G*
ABC
1.25194 0.32554 0.28648

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.613
C2 0.000 1.190 -0.206
C3 0.000 -1.190 -0.206
H4 0.000 2.038 0.481
H5 0.000 -2.038 0.481
H6 0.891 1.245 -0.849
H7 -0.891 1.245 -0.849
H8 -0.891 -1.245 -0.849
H9 0.891 -1.245 -0.849

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.44391.44392.04182.04182.11652.11652.11652.1165
C21.44392.37931.09113.29941.10051.10052.67102.6710
C31.44392.37933.29941.09112.67102.67101.10051.1005
H42.04181.09113.29944.07501.78651.78653.65193.6519
H52.04183.29941.09114.07503.65193.65191.78651.7865
H62.11651.10052.67101.78653.65191.78243.06182.4895
H72.11651.10052.67101.78653.65191.78242.48953.0618
H82.11652.67101.10053.65191.78653.06182.48951.7824
H92.11652.67101.10053.65191.78652.48953.06181.7824

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 106.471 O1 C2 H6 111.869
O1 C2 H7 111.869 O1 C3 H5 106.471
O1 C3 H8 111.869 O1 C3 H9 111.869
C2 O1 C3 110.957 H4 C2 H6 109.207
H4 C2 H7 109.207 H5 C3 H8 109.207
H5 C3 H9 109.207 H6 C2 H7 108.165
H8 C3 H9 108.165
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.501      
2 C -0.352      
3 C -0.352      
4 H 0.227      
5 H 0.227      
6 H 0.188      
7 H 0.188      
8 H 0.188      
9 H 0.188      


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 -1.627 1.627
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.003 0.000 0.000
y 0.000 -16.253 0.000
z 0.000 0.000 -20.946
Traceless
 xyz
x -1.403 0.000 0.000
y 0.000 4.221 0.000
z 0.000 0.000 -2.818
Polar
3z2-r2-5.636
x2-y2-3.750
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.311 0.000 0.000
y 0.000 4.323 0.000
z 0.000 0.000 3.292


<r2> (average value of r2) Å2
<r2> 53.425
(<r2>)1/2 7.309