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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-155.093128
Energy at 298.15K-155.099774
HF Energy-155.093128
Nuclear repulsion energy83.848587
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 B3LYPultrafine/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 3109 3008 19.99 107.27 0.27 0.42
2 A1 2973 2876 67.14 333.11 0.02 0.04
3 A1 1512 1463 3.48 4.91 0.73 0.84
4 A1 1486 1438 0.04 3.04 0.71 0.83
5 A1 1266 1224 6.21 0.42 0.75 0.86
6 A1 934 904 36.57 8.01 0.33 0.50
7 A1 409 396 2.49 1.26 0.14 0.25
8 A2 3009 2912 0.00 21.34 0.75 0.86
9 A2 1484 1436 0.00 11.90 0.75 0.86
10 A2 1161 1124 0.00 1.76 0.75 0.86
11 A2 206 200 0.00 0.20 0.75 0.86
12 B1 3004 2907 128.96 108.42 0.75 0.86
13 B1 1492 1444 13.39 0.08 0.75 0.86
14 B1 1190 1151 7.34 0.00 0.75 0.86
15 B1 240 232 5.36 0.00 0.75 0.86
16 B2 3108 3007 30.73 68.24 0.75 0.86
17 B2 2962 2866 58.27 3.08 0.75 0.86
18 B2 1496 1448 11.71 1.66 0.75 0.86
19 B2 1458 1411 2.35 1.42 0.75 0.86
20 B2 1191 1153 93.00 0.38 0.75 0.86
21 B2 1115 1079 53.53 1.84 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17403.0 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 16837.4 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 B3LYPultrafine/aug-cc-pVTZ
ABC
1.31918 0.33243 0.29524

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.587
C2 0.000 1.175 -0.195
C3 0.000 -1.175 -0.195
H4 0.000 2.021 0.490
H5 0.000 -2.021 0.490
H6 0.890 1.232 -0.833
H7 -0.890 1.232 -0.833
H8 -0.890 -1.232 -0.833
H9 0.890 -1.232 -0.833

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41161.41162.02362.02362.08022.08022.08022.0802
C21.41162.35101.08813.26921.09711.09712.64492.6449
C31.41162.35103.26921.08812.64492.64491.09711.0971
H42.02361.08813.26924.04261.77941.77943.62303.6230
H52.02363.26921.08814.04263.62303.62301.77941.7794
H62.08021.09712.64491.77943.62301.78063.03982.4637
H72.08021.09712.64491.77943.62301.78062.46373.0398
H82.08022.64491.09713.62301.77943.03982.46371.7806
H92.08022.64491.09713.62301.77942.46373.03981.7806

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 107.397 O1 C2 H6 111.413
O1 C2 H7 111.413 O1 C3 H5 107.397
O1 C3 H8 111.413 O1 C3 H9 111.413
C2 O1 C3 112.755 H4 C2 H6 109.040
H4 C2 H7 109.040 H5 C3 H8 109.040
H5 C3 H9 109.040 H6 C2 H7 108.487
H8 C3 H9 108.487
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.442      
2 C -0.535      
3 C -0.535      
4 H 0.260      
5 H 0.260      
6 H 0.248      
7 H 0.248      
8 H 0.248      
9 H 0.248      


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 -1.266 1.266
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.389 0.000 0.000
y 0.000 -17.688 0.000
z 0.000 0.000 -21.583
Traceless
 xyz
x -0.753 0.000 0.000
y 0.000 3.297 0.000
z 0.000 0.000 -2.544
Polar
3z2-r2-5.088
x2-y2-2.701
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.680 0.000 0.000
y 0.000 5.839 0.000
z 0.000 0.000 4.784


<r2> (average value of r2) Å2
<r2> 52.881
(<r2>)1/2 7.272