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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-154.904118
Energy at 298.15K-154.910837
HF Energy-154.732896
Nuclear repulsion energy84.037162
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 B2PLYP=FULL/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 3157 3157 32.40 96.18 0.35 0.51
2 A1 3007 3007 68.44 237.46 0.03 0.07
3 A1 1555 1555 1.85 15.33 0.75 0.85
4 A1 1523 1523 0.11 10.89 0.75 0.86
5 A1 1291 1291 5.43 2.77 0.57 0.72
6 A1 960 960 38.21 8.90 0.49 0.66
7 A1 424 424 2.18 0.55 0.04 0.08
8 A2 3049 3049 0.00 18.31 0.75 0.86
9 A2 1515 1515 0.00 30.62 0.75 0.86
10 A2 1185 1185 0.00 6.74 0.75 0.86
11 A2 220 220 0.00 0.46 0.75 0.86
12 B1 3045 3045 171.88 113.30 0.75 0.86
13 B1 1526 1526 14.41 0.02 0.75 0.86
14 B1 1218 1218 7.86 2.01 0.75 0.86
15 B1 262 262 6.81 0.03 0.75 0.86
16 B2 3155 3155 36.54 80.33 0.75 0.86
17 B2 2994 2994 58.27 1.84 0.75 0.86
18 B2 1535 1535 16.22 4.15 0.75 0.86
19 B2 1493 1493 4.23 7.55 0.75 0.86
20 B2 1222 1222 93.79 0.01 0.75 0.86
21 B2 1140 1140 46.10 4.30 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17736.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17736.4 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 B2PLYP=FULL/6-311G*
ABC
1.30463 0.33683 0.29797

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.593
C2 0.000 1.166 -0.197
C3 0.000 -1.166 -0.197
H4 0.000 2.017 0.483
H5 0.000 -2.017 0.483
H6 0.890 1.220 -0.837
H7 -0.890 1.220 -0.837
H8 -0.890 -1.220 -0.837
H9 0.890 -1.220 -0.837

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40851.40852.01952.01952.08012.08012.08012.0801
C21.40852.33281.08853.25471.09821.09822.62672.6267
C31.40852.33283.25471.08852.62672.62671.09821.0982
H42.01951.08853.25474.03311.78031.78033.60733.6073
H52.01953.25471.08854.03313.60733.60731.78031.7803
H62.08011.09822.62671.78033.60731.78103.02132.4406
H72.08011.09822.62671.78033.60731.78102.44063.0213
H82.08012.62671.09823.60731.78033.02132.44061.7810
H92.08012.62671.09823.60731.78032.44063.02131.7810

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 107.261 O1 C2 H6 111.564
O1 C2 H7 111.564 O1 C3 H5 107.261
O1 C3 H8 111.564 O1 C3 H9 111.564
C2 O1 C3 111.808 H4 C2 H6 109.014
H4 C2 H7 109.014 H5 C3 H8 109.014
H5 C3 H9 109.014 H6 C2 H7 108.368
H8 C3 H9 108.368
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability