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

using model chemistry: B97D3/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/3-21G*
 hartrees
Energy at 0K-154.083600
Energy at 298.15K-154.090253
HF Energy-154.083600
Nuclear repulsion energy81.828422
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 B97D3/3-21G*
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 3078 3078 32.95 92.80 0.32 0.49
2 A1 2924 2924 58.23 196.80 0.03 0.06
3 A1 1560 1560 0.33 32.80 0.75 0.86
4 A1 1496 1496 0.51 13.94 0.67 0.80
5 A1 1222 1222 0.05 5.71 0.72 0.83
6 A1 855 855 18.40 9.69 0.34 0.50
7 A1 402 402 3.72 0.80 0.09 0.16
8 A2 2954 2954 0.00 20.79 0.75 0.86
9 A2 1514 1514 0.00 53.38 0.75 0.86
10 A2 1122 1122 0.00 13.90 0.75 0.86
11 A2 249 249 0.00 0.34 0.75 0.86
12 B1 2953 2953 182.28 95.48 0.75 0.86
13 B1 1523 1523 13.22 0.93 0.75 0.86
14 B1 1158 1158 1.16 4.97 0.75 0.86
15 B1 253 253 7.78 0.04 0.75 0.86
16 B2 3075 3075 32.10 74.93 0.75 0.86
17 B2 2908 2908 57.86 4.18 0.75 0.86
18 B2 1540 1540 17.11 5.59 0.75 0.86
19 B2 1452 1452 10.59 12.49 0.75 0.86
20 B2 1120 1120 25.87 3.18 0.75 0.86
21 B2 1042 1042 70.31 3.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17199.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17199.2 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 B97D3/3-21G*
ABC
1.21104 0.32098 0.28115

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.627
C2 0.000 1.199 -0.212
C3 0.000 -1.199 -0.212
H4 0.000 2.051 0.479
H5 0.000 -2.051 0.479
H6 0.896 1.253 -0.859
H7 -0.896 1.253 -0.859
H8 -0.896 -1.253 -0.859
H9 0.896 -1.253 -0.859

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.46311.46312.05582.05582.14092.14092.14092.1409
C21.46312.39721.09703.32181.10731.10732.68922.6892
C31.46312.39723.32181.09702.68922.68921.10731.1073
H42.05581.09703.32184.10101.79801.79803.67523.6752
H52.05583.32181.09704.10103.67523.67521.79801.7980
H62.14091.10732.68921.79803.67521.79293.08082.5053
H72.14091.10732.68921.79803.67521.79292.50533.0808
H82.14092.68921.10733.67521.79803.08082.50531.7929
H92.14092.68921.10733.67521.79802.50533.08081.7929

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 105.958 O1 C2 H6 112.054
O1 C2 H7 112.054 O1 C3 H5 105.958
O1 C3 H8 112.054 O1 C3 H9 112.054
C2 O1 C3 110.015 H4 C2 H6 109.305
H4 C2 H7 109.305 H5 C3 H8 109.305
H5 C3 H9 109.305 H6 C2 H7 108.109
H8 C3 H9 108.109
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.458      
2 C -0.339      
3 C -0.339      
4 H 0.213      
5 H 0.213      
6 H 0.178      
7 H 0.178      
8 H 0.178      
9 H 0.178      


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 -1.493 1.493
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.105 0.000 0.000
y 0.000 -16.502 0.000
z 0.000 0.000 -20.924
Traceless
 xyz
x -1.392 0.000 0.000
y 0.000 4.012 0.000
z 0.000 0.000 -2.620
Polar
3z2-r2-5.240
x2-y2-3.603
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.380 0.000 0.000
y 0.000 4.618 0.000
z 0.000 0.000 3.416


<r2> (average value of r2) Å2
<r2> 54.218
(<r2>)1/2 7.363