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

using model chemistry: wB97X-D/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-30.872202
Energy at 298.15K-30.878898
HF Energy-30.872202
Nuclear repulsion energy49.982893
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/CEP-31G*
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 3157 3157 52.14 101.30 0.33 0.49
2 A1 3013 3013 101.32 263.68 0.04 0.07
3 A1 1529 1529 0.99 13.73 0.74 0.85
4 A1 1506 1506 0.95 19.80 0.69 0.82
5 A1 1275 1275 3.69 4.90 0.57 0.73
6 A1 974 974 41.34 14.23 0.34 0.51
7 A1 424 424 2.79 0.23 0.32 0.49
8 A2 3059 3059 0.00 12.64 0.75 0.86
9 A2 1494 1494 0.00 36.29 0.75 0.86
10 A2 1173 1173 0.00 14.42 0.75 0.86
11 A2 214 214 0.00 0.69 0.75 0.86
12 B1 3053 3053 216.86 104.59 0.75 0.86
13 B1 1507 1507 14.08 0.51 0.75 0.86
14 B1 1203 1203 4.00 3.55 0.75 0.86
15 B1 265 265 7.00 0.00 0.75 0.86
16 B2 3153 3153 60.08 80.65 0.75 0.86
17 B2 3002 3002 79.00 0.35 0.75 0.86
18 B2 1505 1505 14.96 1.96 0.75 0.86
19 B2 1476 1476 6.75 8.42 0.75 0.86
20 B2 1231 1231 131.97 1.22 0.75 0.86
21 B2 1136 1136 21.31 5.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17675.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17675.4 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 wB97X-D/CEP-31G*
ABC
1.28041 0.33371 0.29490

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.599
C2 0.000 1.171 -0.198
C3 0.000 -1.171 -0.198
H4 0.000 2.033 0.483
H5 0.000 -2.033 0.483
H6 0.899 1.222 -0.845
H7 -0.899 1.222 -0.845
H8 -0.899 -1.222 -0.845
H9 0.899 -1.222 -0.845

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41661.41662.03652.03652.09452.09452.09452.0945
C21.41662.34191.09863.27561.10881.10882.63672.6367
C31.41662.34193.27561.09862.63672.63671.10881.1088
H42.03651.09863.27564.06631.79711.79713.62853.6285
H52.03653.27561.09864.06633.62853.62851.79711.7971
H62.09451.10882.63671.79713.62851.79823.03402.4437
H72.09451.10882.63671.79713.62851.79822.44373.0340
H82.09452.63671.10883.62851.79713.03402.44371.7982
H92.09452.63671.10883.62851.79712.44373.03401.7982

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 107.455 O1 C2 H6 111.487
O1 C2 H7 111.487 O1 C3 H5 107.455
O1 C3 H8 111.487 O1 C3 H9 111.487
C2 O1 C3 111.503 H4 C2 H6 108.999
H4 C2 H7 108.999 H5 C3 H8 108.999
H5 C3 H9 108.999 H6 C2 H7 108.360
H8 C3 H9 108.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.204      
2 C -0.381      
3 C -0.381      
4 H 0.207      
5 H 0.207      
6 H 0.138      
7 H 0.138      
8 H 0.138      
9 H 0.138      


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 -1.589 1.589
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.593 0.000 0.000
y 0.000 -16.600 0.000
z 0.000 0.000 -20.750
Traceless
 xyz
x -0.917 0.000 0.000
y 0.000 3.571 0.000
z 0.000 0.000 -2.654
Polar
3z2-r2-5.308
x2-y2-2.992
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.448 0.000 0.000
y 0.000 4.230 0.000
z 0.000 0.000 3.346


<r2> (average value of r2) Å2
<r2> 46.087
(<r2>)1/2 6.789