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

using model chemistry: PBE1PBE/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-154.860446
Energy at 298.15K-154.867097
HF Energy-154.860446
Nuclear repulsion energy83.985757
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/aug-cc-pVDZ
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 3152 3031 20.75 98.38 0.31 0.48
2 A1 2996 2881 61.57 331.59 0.02 0.03
3 A1 1483 1426 4.98 4.46 0.73 0.84
4 A1 1459 1403 0.10 3.65 0.73 0.85
5 A1 1258 1209 6.92 0.38 0.68 0.81
6 A1 972 934 35.33 7.59 0.32 0.48
7 A1 415 399 2.39 1.16 0.12 0.22
8 A2 3053 2935 0.00 20.08 0.75 0.86
9 A2 1450 1394 0.00 12.13 0.75 0.86
10 A2 1148 1103 0.00 1.51 0.75 0.86
11 A2 200 192 0.00 0.24 0.75 0.86
12 B1 3046 2929 122.11 104.76 0.75 0.86
13 B1 1462 1406 16.40 0.08 0.75 0.86
14 B1 1179 1134 6.15 0.00 0.75 0.86
15 B1 245 235 5.26 0.01 0.75 0.86
16 B2 3151 3030 26.72 65.95 0.75 0.86
17 B2 2985 2870 62.07 1.63 0.75 0.86
18 B2 1465 1408 13.54 1.41 0.75 0.86
19 B2 1428 1373 0.76 1.61 0.75 0.86
20 B2 1219 1172 125.17 0.92 0.75 0.86
21 B2 1121 1078 15.76 1.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17441.9 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 16772.1 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/aug-cc-pVDZ
ABC
1.30453 0.33678 0.29839

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.590
C2 0.000 1.165 -0.195
C3 0.000 -1.165 -0.195
H4 0.000 2.023 0.488
H5 0.000 -2.023 0.488
H6 0.897 1.218 -0.839
H7 -0.897 1.218 -0.839
H8 -0.897 -1.218 -0.839
H9 0.897 -1.218 -0.839

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40511.40512.02512.02512.08102.08102.08102.0810
C21.40512.33051.09623.26021.10531.10532.62662.6266
C31.40512.33053.26021.09622.62662.62661.10531.1053
H42.02511.09623.26024.04511.79241.79243.61493.6149
H52.02513.26021.09624.04513.61493.61491.79241.7924
H62.08101.10532.62661.79243.61491.79313.02492.4361
H72.08101.10532.62661.79243.61491.79312.43613.0249
H82.08102.62661.10533.61491.79243.02492.43611.7931
H92.08102.62661.10533.61491.79242.43613.02491.7931

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 107.479 O1 C2 H6 111.426
O1 C2 H7 111.426 O1 C3 H5 107.479
O1 C3 H8 111.426 O1 C3 H9 111.426
C2 O1 C3 112.054 H4 C2 H6 109.017
H4 C2 H7 109.017 H5 C3 H8 109.017
H5 C3 H9 109.017 H6 C2 H7 108.424
H8 C3 H9 108.424
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.558      
2 C 0.766      
3 C 0.766      
4 H -0.302      
5 H -0.302      
6 H -0.093      
7 H -0.093      
8 H -0.093      
9 H -0.093      


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 -1.237 1.237
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.316 0.000 0.000
y 0.000 -17.594 0.000
z 0.000 0.000 -21.442
Traceless
 xyz
x -0.798 0.000 0.000
y 0.000 3.285 0.000
z 0.000 0.000 -2.487
Polar
3z2-r2-4.974
x2-y2-2.722
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.650 0.000 0.000
y 0.000 5.779 0.000
z 0.000 0.000 4.725


<r2> (average value of r2) Å2
<r2> 52.518
(<r2>)1/2 7.247