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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-30.823689
Energy at 298.15K-30.830299
HF Energy-30.823689
Nuclear repulsion energy49.282412
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 3187 3187 59.10 91.12 0.37 0.54
2 A1 3014 3014 102.24 280.22 0.03 0.06
3 A1 1533 1533 3.40 22.16 0.75 0.85
4 A1 1503 1503 0.03 16.21 0.65 0.79
5 A1 1256 1256 0.00 7.84 0.54 0.70
6 A1 912 912 30.71 28.02 0.27 0.43
7 A1 398 398 4.15 0.33 0.34 0.51
8 A2 3086 3086 0.00 12.59 0.75 0.86
9 A2 1504 1504 0.00 44.13 0.75 0.86
10 A2 1155 1155 0.00 19.80 0.75 0.86
11 A2 205 205 0.00 0.63 0.75 0.86
12 B1 3083 3083 236.95 103.38 0.75 0.86
13 B1 1516 1516 21.12 0.90 0.75 0.86
14 B1 1183 1183 2.75 4.47 0.75 0.86
15 B1 241 241 10.49 0.03 0.75 0.86
16 B2 3182 3182 52.09 81.64 0.75 0.86
17 B2 3004 3004 98.75 0.09 0.75 0.86
18 B2 1514 1514 18.14 3.81 0.75 0.86
19 B2 1479 1479 1.40 7.48 0.75 0.86
20 B2 1198 1198 90.05 1.21 0.75 0.86
21 B2 1112 1112 30.93 11.13 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17631.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17631.4 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
1.27559 0.31728 0.28187

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 0.598
C2 0.000 1.207 -0.201
C3 0.000 -1.207 -0.201
H4 0.000 2.049 0.500
H5 0.000 -2.049 0.500
H6 0.901 1.263 -0.843
H7 -0.901 1.263 -0.843
H8 -0.901 -1.263 -0.843
H9 0.901 -1.263 -0.843

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.44791.44792.05162.05162.11732.11732.11732.1173
C21.44792.41411.09603.33101.10721.10722.70622.7062
C31.44792.41413.33101.09602.70622.70621.10721.1072
H42.05161.09603.33104.09851.79801.79803.68573.6857
H52.05163.33101.09604.09853.68573.68571.79801.7980
H62.11731.10722.70621.79803.68571.80133.10232.5258
H72.11731.10722.70621.79803.68571.80132.52583.1023
H82.11732.70621.10723.68571.79803.10232.52581.8013
H92.11732.70621.10723.68571.79802.52583.10231.8013

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 106.693 O1 C2 H6 111.225
O1 C2 H7 111.225 O1 C3 H5 106.693
O1 C3 H8 111.225 O1 C3 H9 111.225
C2 O1 C3 112.956 H4 C2 H6 109.390
H4 C2 H7 109.390 H5 C3 H8 109.390
H5 C3 H9 109.390 H6 C2 H7 108.875
H8 C3 H9 108.875
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 -0.267      
2 C -0.352      
3 C -0.352      
4 H 0.205      
5 H 0.205      
6 H 0.140      
7 H 0.140      
8 H 0.140      
9 H 0.140      


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 -2.050 2.050
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.684 0.000 0.000
y 0.000 -16.072 0.000
z 0.000 0.000 -21.296
Traceless
 xyz
x -1.001 0.000 0.000
y 0.000 4.418 0.000
z 0.000 0.000 -3.418
Polar
3z2-r2-6.835
x2-y2-3.613
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.266 0.000 0.000
y 0.000 4.279 0.000
z 0.000 0.000 3.266


<r2> (average value of r2) Å2
<r2> 47.370
(<r2>)1/2 6.883