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

using model chemistry: B2PLYP=FULLultrafine/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B2PLYP=FULLultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-154.974440
Energy at 298.15K 
HF Energy-154.761955
Nuclear repulsion energy84.056883
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 B2PLYP=FULLultrafine/aug-cc-pVTZ
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 3143 3014 18.86 100.60 0.28 0.44
2 A1 3004 2881 64.75 329.07 0.02 0.03
3 A1 1529 1466 3.27 5.48 0.74 0.85
4 A1 1499 1437 0.00 2.19 0.73 0.85
5 A1 1277 1225 6.41 0.42 0.71 0.83
6 A1 946 907 36.22 8.91 0.28 0.44
7 A1 414 397 2.44 1.09 0.14 0.25
8 A2 3046 2921 0.00 18.13 0.75 0.86
9 A2 1502 1441 0.00 11.41 0.75 0.86
10 A2 1173 1125 0.00 1.60 0.75 0.86
11 A2 206 198 0.00 0.18 0.75 0.86
12 B1 3040 2916 119.64 101.80 0.75 0.86
13 B1 1511 1450 13.43 0.05 0.75 0.86
14 B1 1203 1154 7.44 0.00 0.75 0.86
15 B1 247 237 5.23 0.00 0.75 0.86
16 B2 3141 3013 29.20 63.84 0.75 0.86
17 B2 2995 2872 55.29 2.22 0.75 0.86
18 B2 1514 1452 11.09 1.33 0.75 0.86
19 B2 1469 1409 2.73 1.36 0.75 0.86
20 B2 1205 1156 95.78 0.49 0.75 0.86
21 B2 1126 1080 47.47 1.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17594.7 cm-1
Scaled (by 0.9591) Zero Point Vibrational Energy (zpe) 16875.1 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 B2PLYP=FULLultrafine/aug-cc-pVTZ
ABC
1.31031 0.33610 0.29754

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.592
C2 0.000 1.169 -0.197
C3 0.000 -1.169 -0.197
H4 0.000 2.018 0.481
H5 0.000 -2.018 0.481
H6 0.889 1.218 -0.834
H7 -0.889 1.218 -0.834
H8 -0.889 -1.218 -0.834
H9 0.889 -1.218 -0.834

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41001.41002.02062.02062.07522.07522.07522.0752
C21.41002.33771.08583.25751.09461.09462.62542.6254
C31.41002.33773.25751.08582.62542.62541.09461.0946
H42.02061.08583.25754.03501.77671.77673.60363.6036
H52.02063.25751.08584.03503.60363.60361.77671.7767
H62.07521.09462.62541.77673.60361.77713.01532.4359
H72.07521.09462.62541.77673.60361.77712.43593.0153
H82.07522.62541.09463.60361.77673.01532.43591.7771
H92.07522.62541.09463.60361.77672.43593.01531.7771

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 107.402 O1 C2 H6 111.275
O1 C2 H7 111.275 O1 C3 H5 107.402
O1 C3 H8 111.275 O1 C3 H9 111.275
C2 O1 C3 111.983 H4 C2 H6 109.152
H4 C2 H7 109.152 H5 C3 H8 109.152
H5 C3 H9 109.152 H6 C2 H7 108.542
H8 C3 H9 108.542
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP=FULLultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.436      
2 C -0.663      
3 C -0.663      
4 H 0.306      
5 H 0.306      
6 H 0.288      
7 H 0.288      
8 H 0.288      
9 H 0.288      


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 -1.303 1.303
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.389 0.000 0.000
y 0.000 -17.647 0.000
z 0.000 0.000 -21.614
Traceless
 xyz
x -0.759 0.000 0.000
y 0.000 3.355 0.000
z 0.000 0.000 -2.596
Polar
3z2-r2-5.191
x2-y2-2.742
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.595 0.000 0.000
y 0.000 5.730 0.000
z 0.000 0.000 4.715


<r2> (average value of r2) Å2
<r2> 52.556
(<r2>)1/2 7.250