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

using model chemistry: PBEPBE/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 PBEPBE/aug-cc-pVDZ
 hartrees
Energy at 0K-154.844606
Energy at 298.15K-154.851188
HF Energy-154.844606
Nuclear repulsion energy83.201063
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 PBEPBE/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 3064 3046 20.05 107.76 0.30 0.47
2 A1 2902 2884 67.60 357.82 0.02 0.03
3 A1 1433 1424 4.08 4.75 0.74 0.85
4 A1 1404 1396 0.00 4.22 0.74 0.85
5 A1 1208 1201 5.70 0.35 0.65 0.79
6 A1 919 913 34.27 7.05 0.35 0.52
7 A1 403 401 2.14 1.63 0.15 0.27
8 A2 2952 2934 0.00 29.51 0.75 0.86
9 A2 1397 1389 0.00 13.74 0.75 0.86
10 A2 1105 1098 0.00 1.83 0.75 0.86
11 A2 201 200 0.00 0.39 0.75 0.86
12 B1 2945 2927 134.39 125.46 0.75 0.86
13 B1 1408 1400 14.65 0.08 0.75 0.86
14 B1 1134 1127 5.73 0.04 0.75 0.86
15 B1 239 238 4.92 0.01 0.75 0.86
16 B2 3063 3044 25.51 71.79 0.75 0.86
17 B2 2890 2872 68.05 3.80 0.75 0.86
18 B2 1414 1405 12.90 1.93 0.75 0.86
19 B2 1377 1368 0.94 2.24 0.75 0.86
20 B2 1145 1138 102.13 0.44 0.75 0.86
21 B2 1078 1071 25.60 1.22 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16840.2 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 16737.5 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 PBEPBE/aug-cc-pVDZ
ABC
1.27311 0.33127 0.29293

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.599
C2 0.000 1.175 -0.199
C3 0.000 -1.175 -0.199
H4 0.000 2.037 0.491
H5 0.000 -2.037 0.491
H6 0.904 1.227 -0.848
H7 -0.904 1.227 -0.848
H8 -0.904 -1.227 -0.848
H9 0.904 -1.227 -0.848

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.42061.42062.04022.04022.10162.10162.10162.1016
C21.42062.35091.10383.28591.11391.11392.64782.6478
C31.42062.35093.28591.10382.64782.64781.11391.1139
H42.04021.10383.28594.07461.80711.80713.64233.6423
H52.04023.28591.10384.07463.64233.64231.80711.8071
H62.10161.11392.64781.80713.64231.80703.04792.4545
H72.10161.11392.64781.80713.64231.80702.45453.0479
H82.10162.64781.11393.64231.80713.04792.45451.8070
H92.10162.64781.11393.64231.80712.45453.04791.8070

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 107.165 O1 C2 H6 111.461
O1 C2 H7 111.461 O1 C3 H5 107.165
O1 C3 H8 111.461 O1 C3 H9 111.461
C2 O1 C3 111.669 H4 C2 H6 109.145
H4 C2 H7 109.145 H5 C3 H8 109.145
H5 C3 H9 109.145 H6 C2 H7 108.417
H8 C3 H9 108.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.465      
2 C 0.884      
3 C 0.884      
4 H -0.361      
5 H -0.361      
6 H -0.146      
7 H -0.146      
8 H -0.146      
9 H -0.146      


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 -1.173 1.173
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.663 0.000 0.000
y 0.000 -17.889 0.000
z 0.000 0.000 -21.742
Traceless
 xyz
x -0.847 0.000 0.000
y 0.000 3.313 0.000
z 0.000 0.000 -2.466
Polar
3z2-r2-4.932
x2-y2-2.774
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.958 0.000 0.000
y 0.000 6.194 0.000
z 0.000 0.000 5.051


<r2> (average value of r2) Å2
<r2> 53.428
(<r2>)1/2 7.309