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

using model chemistry: PBE1PBE/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-154.897425
Energy at 298.15K-154.904099
HF Energy-154.897425
Nuclear repulsion energy84.390494
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/6-311+G(3df,2p)
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 3132 3132 19.33 99.96 0.30 0.46
2 A1 2987 2987 62.12 289.70 0.02 0.03
3 A1 1510 1510 4.93 5.37 0.75 0.85
4 A1 1486 1486 0.13 3.19 0.74 0.85
5 A1 1272 1272 6.55 0.41 0.59 0.74
6 A1 978 978 36.55 7.23 0.29 0.45
7 A1 412 412 2.53 0.90 0.11 0.20
8 A2 3033 3033 0.00 18.94 0.75 0.86
9 A2 1479 1479 0.00 12.05 0.75 0.86
10 A2 1167 1167 0.00 1.55 0.75 0.86
11 A2 211 211 0.00 0.20 0.75 0.86
12 B1 3027 3027 121.43 102.61 0.75 0.86
13 B1 1487 1487 16.88 0.06 0.75 0.86
14 B1 1197 1197 6.70 0.04 0.75 0.86
15 B1 245 245 5.29 0.01 0.75 0.86
16 B2 3131 3131 28.57 64.87 0.75 0.86
17 B2 2977 2977 58.69 1.87 0.75 0.86
18 B2 1492 1492 14.04 1.49 0.75 0.86
19 B2 1457 1457 0.86 1.45 0.75 0.86
20 B2 1229 1229 126.05 0.91 0.75 0.86
21 B2 1135 1135 19.84 1.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17521.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17521.2 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/6-311+G(3df,2p)
ABC
1.32350 0.33914 0.30075

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.586
C2 0.000 1.161 -0.193
C3 0.000 -1.161 -0.193
H4 0.000 2.015 0.484
H5 0.000 -2.015 0.484
H6 0.890 1.216 -0.834
H7 -0.890 1.216 -0.834
H8 -0.890 -1.216 -0.834
H9 0.890 -1.216 -0.834

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.39821.39822.01772.01772.07092.07092.07092.0709
C21.39822.32251.08953.24761.09871.09872.61842.6184
C31.39822.32253.24761.08952.61842.61841.09871.0987
H42.01771.08953.24764.03021.78011.78013.60153.6015
H52.01773.24761.08954.03023.60153.60151.78011.7801
H62.07091.09872.61841.78013.60151.78083.01442.4322
H72.07091.09872.61841.78013.60151.78082.43223.0144
H82.07092.61841.09873.60151.78013.01442.43221.7808
H92.07092.61841.09873.60151.78012.43223.01441.7808

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 107.750 O1 C2 H6 111.506
O1 C2 H7 111.506 O1 C3 H5 107.750
O1 C3 H8 111.506 O1 C3 H9 111.506
C2 O1 C3 112.303 H4 C2 H6 108.874
H4 C2 H7 108.874 H5 C3 H8 108.874
H5 C3 H9 108.874 H6 C2 H7 108.270
H8 C3 H9 108.270
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.629      
2 C 0.010      
3 C 0.010      
4 H 0.105      
5 H 0.105      
6 H 0.100      
7 H 0.100      
8 H 0.100      
9 H 0.100      


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 -1.249 1.249
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.207 0.000 0.000
y 0.000 -17.498 0.000
z 0.000 0.000 -21.354
Traceless
 xyz
x -0.781 0.000 0.000
y 0.000 3.283 0.000
z 0.000 0.000 -2.502
Polar
3z2-r2-5.005
x2-y2-2.709
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.465 0.000 0.000
y 0.000 5.594 0.000
z 0.000 0.000 4.525


<r2> (average value of r2) Å2
<r2> 52.131
(<r2>)1/2 7.220