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

using model chemistry: B3LYPultrafine/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/3-21G
 hartrees
Energy at 0K-154.175098
Energy at 298.15K-154.181773
HF Energy-154.175098
Nuclear repulsion energy82.222301
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 B3LYPultrafine/3-21G
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 3131 3021 27.46 88.89 0.32 0.48
2 A1 2991 2886 48.75 185.91 0.04 0.07
3 A1 1588 1533 0.60 33.01 0.75 0.86
4 A1 1528 1474 0.42 13.16 0.68 0.81
5 A1 1247 1204 0.00 5.51 0.68 0.81
6 A1 884 853 19.30 11.27 0.34 0.50
7 A1 401 387 3.84 0.67 0.07 0.13
8 A2 3021 2915 0.00 17.19 0.75 0.86
9 A2 1547 1492 0.00 52.47 0.75 0.86
10 A2 1148 1108 0.00 12.51 0.75 0.86
11 A2 247 239 0.00 0.24 0.75 0.86
12 B1 3020 2914 151.91 89.93 0.75 0.86
13 B1 1554 1500 14.39 1.19 0.75 0.86
14 B1 1181 1140 1.93 4.72 0.75 0.86
15 B1 244 235 8.02 0.04 0.75 0.86
16 B2 3128 3018 26.91 72.94 0.75 0.86
17 B2 2978 2874 46.07 2.88 0.75 0.86
18 B2 1570 1515 16.50 5.35 0.75 0.86
19 B2 1485 1433 9.29 11.26 0.75 0.86
20 B2 1154 1113 42.08 1.54 0.75 0.86
21 B2 1082 1044 53.97 4.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17565.1 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 16948.6 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 B3LYPultrafine/3-21G
ABC
1.24571 0.32101 0.28268

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.614
C2 0.000 1.199 -0.207
C3 0.000 -1.199 -0.207
H4 0.000 2.043 0.486
H5 0.000 -2.043 0.486
H6 0.892 1.260 -0.850
H7 -0.892 1.260 -0.850
H8 -0.892 -1.260 -0.850
H9 0.892 -1.260 -0.850

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.45321.45322.04732.04732.12762.12762.12762.1276
C21.45322.39781.09213.31531.10131.10132.69322.6932
C31.45322.39783.31531.09212.69322.69321.10131.1013
H42.04731.09213.31534.08651.78731.78733.67283.6728
H52.04733.31531.09214.08653.67283.67281.78731.7873
H62.12761.10132.69321.78733.67281.78353.08672.5192
H72.12761.10132.69321.78733.67281.78352.51923.0867
H82.12762.69321.10133.67281.78733.08672.51921.7835
H92.12762.69321.10133.67281.78732.51923.08671.7835

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 106.227 O1 C2 H6 112.062
O1 C2 H7 112.062 O1 C3 H5 106.227
O1 C3 H8 112.062 O1 C3 H9 112.062
C2 O1 C3 111.183 H4 C2 H6 109.142
H4 C2 H7 109.142 H5 C3 H8 109.142
H5 C3 H9 109.142 H6 C2 H7 108.140
H8 C3 H9 108.140
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.476      
2 C -0.309      
3 C -0.309      
4 H 0.205      
5 H 0.205      
6 H 0.171      
7 H 0.171      
8 H 0.171      
9 H 0.171      


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 -1.534 1.534
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.131 0.000 0.000
y 0.000 -16.520 0.000
z 0.000 0.000 -21.000
Traceless
 xyz
x -1.371 0.000 0.000
y 0.000 4.045 0.000
z 0.000 0.000 -2.674
Polar
3z2-r2-5.349
x2-y2-3.611
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.294 0.000 0.000
y 0.000 4.469 0.000
z 0.000 0.000 3.318


<r2> (average value of r2) Å2
<r2> 54.025
(<r2>)1/2 7.350