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

using model chemistry: PBE1PBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/6-31G
 hartrees
Energy at 0K-154.788208
Energy at 298.15K-154.794847
HF Energy-154.788208
Nuclear repulsion energy82.820793
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/6-31G
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 3193 3052 23.90 89.59 0.36 0.53
2 A1 3022 2889 50.63 229.26 0.03 0.06
3 A1 1559 1490 2.38 27.84 0.74 0.85
4 A1 1516 1450 0.27 13.25 0.72 0.84
5 A1 1264 1208 0.05 5.21 0.63 0.78
6 A1 916 875 26.03 12.22 0.38 0.55
7 A1 401 384 4.04 0.48 0.06 0.12
8 A2 3083 2947 0.00 16.54 0.75 0.86
9 A2 1525 1458 0.00 47.33 0.75 0.86
10 A2 1161 1110 0.00 12.20 0.75 0.86
11 A2 219 209 0.00 0.25 0.75 0.86
12 B1 3080 2944 143.57 99.82 0.75 0.86
13 B1 1534 1466 20.43 0.71 0.75 0.86
14 B1 1191 1139 3.27 4.49 0.75 0.86
15 B1 237 227 9.48 0.01 0.75 0.86
16 B2 3190 3050 21.66 77.78 0.75 0.86
17 B2 3012 2879 50.91 1.67 0.75 0.86
18 B2 1540 1472 17.25 5.58 0.75 0.86
19 B2 1488 1423 1.33 10.05 0.75 0.86
20 B2 1190 1137 67.75 0.32 0.75 0.86
21 B2 1111 1062 39.59 6.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17716.2 cm-1
Scaled (by 0.9559) Zero Point Vibrational Energy (zpe) 16934.9 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/6-31G
ABC
1.29346 0.32251 0.28635

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.594
C2 0.000 1.196 -0.200
C3 0.000 -1.196 -0.200
H4 0.000 2.032 0.500
H5 0.000 -2.032 0.500
H6 0.893 1.258 -0.839
H7 -0.893 1.258 -0.839
H8 -0.893 -1.258 -0.839
H9 0.893 -1.258 -0.839

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.43551.43552.03452.03452.10502.10502.10502.1050
C21.43552.39281.09023.30371.10001.10002.68852.6885
C31.43552.39283.30371.09022.68852.68851.10001.1000
H42.03451.09023.30374.06461.78641.78643.66253.6625
H52.03453.30371.09024.06463.66253.66251.78641.7864
H62.10501.10002.68851.78643.66251.78643.08492.5151
H72.10501.10002.68851.78643.66251.78642.51513.0849
H82.10502.68851.10003.66251.78643.08492.51511.7864
H92.10502.68851.10003.66251.78642.51513.08491.7864

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 106.513 O1 C2 H6 111.556
O1 C2 H7 111.556 O1 C3 H5 106.513
O1 C3 H8 111.556 O1 C3 H9 111.556
C2 O1 C3 112.905 H4 C2 H6 109.294
H4 C2 H7 109.294 H5 C3 H8 109.294
H5 C3 H9 109.294 H6 C2 H7 108.580
H8 C3 H9 108.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.527      
2 C -0.230      
3 C -0.230      
4 H 0.189      
5 H 0.189      
6 H 0.152      
7 H 0.152      
8 H 0.152      
9 H 0.152      


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 -1.734 1.734
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.148 0.000 0.000
y 0.000 -16.333 0.000
z 0.000 0.000 -21.323
Traceless
 xyz
x -1.320 0.000 0.000
y 0.000 4.402 0.000
z 0.000 0.000 -3.082
Polar
3z2-r2-6.164
x2-y2-3.814
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.493 0.000 0.000
y 0.000 4.549 0.000
z 0.000 0.000 3.526


<r2> (average value of r2) Å2
<r2> 53.602
(<r2>)1/2 7.321