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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-154.881675
Energy at 298.15K-154.888373
HF Energy-154.881675
Nuclear repulsion energy84.276958
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
4/u)
Dep P Dep U
1 A1 3139 3012 25.98 102.33 0.33 0.49
2 A1 2986 2865 63.37 257.83 0.03 0.06
3 A1 1517 1455 2.84 12.49 0.75 0.85
4 A1 1489 1429 0.34 11.07 0.75 0.86
5 A1 1273 1221 5.74 1.70 0.56 0.71
6 A1 980 940 39.01 7.53 0.54 0.70
7 A1 413 396 2.21 0.53 0.04 0.07
8 A2 3030 2907 0.00 19.12 0.75 0.86
9 A2 1475 1415 0.00 28.90 0.75 0.86
10 A2 1165 1117 0.00 4.83 0.75 0.86
11 A2 219 210 0.00 0.44 0.75 0.86
12 B1 3025 2902 154.28 112.10 0.75 0.86
13 B1 1484 1424 16.11 0.00 0.75 0.86
14 B1 1197 1149 6.58 1.42 0.75 0.86
15 B1 253 243 6.31 0.03 0.75 0.86
16 B2 3138 3010 31.57 78.71 0.75 0.86
17 B2 2973 2852 57.43 2.25 0.75 0.86
18 B2 1493 1433 17.04 3.92 0.75 0.86
19 B2 1459 1400 2.55 6.61 0.75 0.86
20 B2 1229 1179 124.39 0.37 0.75 0.86
21 B2 1137 1091 17.83 3.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17536.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 16824.5 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
1.31255 0.33922 0.30036

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 1.160 -0.194
C3 0.000 -1.160 -0.194
H4 0.000 2.016 0.483
H5 0.000 -2.016 0.483
H6 0.892 1.218 -0.838
H7 -0.892 1.218 -0.838
H8 -0.892 -1.218 -0.838
H9 0.892 -1.218 -0.838

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40021.40022.01862.01862.07712.07712.07712.0771
C21.40022.32091.09123.24771.10121.10122.62022.6202
C31.40022.32093.24771.09122.62022.62021.10121.1012
H42.01861.09123.24774.03161.78241.78243.60503.6050
H52.01863.24771.09124.03163.60503.60501.78241.7824
H62.07711.10122.62021.78243.60501.78383.01902.4356
H72.07711.10122.62021.78243.60501.78382.43563.0190
H82.07712.62021.10123.60501.78243.01902.43561.7838
H92.07712.62021.10123.60501.78242.43563.01901.7838

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 107.591 O1 C2 H6 111.719
O1 C2 H7 111.719 O1 C3 H5 107.591
O1 C3 H8 111.719 O1 C3 H9 111.719
C2 O1 C3 111.950 H4 C2 H6 108.779
H4 C2 H7 108.779 H5 C3 H8 108.779
H5 C3 H9 108.779 H6 C2 H7 108.180
H8 C3 H9 108.180
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 -0.345      
2 C -0.152      
3 C -0.152      
4 H 0.126      
5 H 0.126      
6 H 0.099      
7 H 0.099      
8 H 0.099      
9 H 0.099      


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 -1.288 1.288
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.172 0.000 0.000
y 0.000 -17.140 0.000
z 0.000 0.000 -21.109
Traceless
 xyz
x -1.048 0.000 0.000
y 0.000 3.500 0.000
z 0.000 0.000 -2.453
Polar
3z2-r2-4.906
x2-y2-3.032
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.934 0.000 0.000
y 0.000 4.892 0.000
z 0.000 0.000 3.871


<r2> (average value of r2) Å2
<r2> 52.067
(<r2>)1/2 7.216