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

using model chemistry: B3LYP/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYP/aug-cc-pVQZ
 hartrees
Energy at 0K-155.104599
Energy at 298.15K-155.111247
HF Energy-155.104599
Nuclear repulsion energy83.909106
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 B3LYP/aug-cc-pVQZ
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 3012 20.11 106.76 0.27 0.43
2 A1 2971 2879 67.42 333.68 0.02 0.04
3 A1 1514 1467 3.44 4.59 0.72 0.84
4 A1 1489 1443 0.08 3.30 0.73 0.84
5 A1 1268 1229 6.26 0.44 0.75 0.86
6 A1 936 907 36.68 7.87 0.34 0.50
7 A1 410 398 2.49 1.26 0.14 0.25
8 A2 3008 2915 0.00 21.40 0.75 0.86
9 A2 1485 1439 0.00 11.77 0.75 0.86
10 A2 1164 1128 0.00 1.74 0.75 0.86
11 A2 208 202 0.00 0.20 0.75 0.86
12 B1 3003 2910 129.52 108.15 0.75 0.86
13 B1 1493 1447 13.46 0.08 0.75 0.86
14 B1 1193 1156 7.41 0.00 0.75 0.86
15 B1 240 233 5.41 0.00 0.75 0.86
16 B2 3108 3011 30.76 68.09 0.75 0.86
17 B2 2960 2868 58.64 3.09 0.75 0.86
18 B2 1498 1451 11.86 1.71 0.75 0.86
19 B2 1462 1416 2.27 1.39 0.75 0.86
20 B2 1194 1156 92.51 0.36 0.75 0.86
21 B2 1117 1082 54.68 1.82 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17414.8 cm-1
Scaled (by 0.9689) Zero Point Vibrational Energy (zpe) 16873.2 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 B3LYP/aug-cc-pVQZ
ABC
1.32231 0.33279 0.29563

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.586
C2 0.000 1.175 -0.194
C3 0.000 -1.175 -0.194
H4 0.000 2.020 0.489
H5 0.000 -2.020 0.489
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
O11.41021.41022.02262.02262.07892.07892.07892.0789
C21.41022.34951.08753.26751.09661.09662.64402.6440
C31.41022.34953.26751.08752.64402.64401.09661.0966
H42.02261.08753.26754.04071.77821.77823.62173.6217
H52.02263.26751.08754.04073.62173.62171.77821.7782
H62.07891.09662.64401.77823.62171.77943.03902.4636
H72.07891.09662.64401.77823.62171.77942.46363.0390
H82.07892.64401.09663.62171.77823.03902.46361.7794
H92.07892.64401.09663.62171.77822.46363.03901.7794

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 107.444 O1 C2 H6 111.438
O1 C2 H7 111.438 O1 C3 H5 107.444
O1 C3 H8 111.438 O1 C3 H9 111.438
C2 O1 C3 112.818 H4 C2 H6 109.009
H4 C2 H7 109.009 H5 C3 H8 109.009
H5 C3 H9 109.009 H6 C2 H7 108.450
H8 C3 H9 108.450
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.645      
2 C -0.571      
3 C -0.571      
4 H 0.399      
5 H 0.399      
6 H 0.247      
7 H 0.247      
8 H 0.247      
9 H 0.247      


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 -1.262 1.262
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.380 0.000 0.000
y 0.000 -17.678 0.000
z 0.000 0.000 -21.565
Traceless
 xyz
x -0.758 0.000 0.000
y 0.000 3.294 0.000
z 0.000 0.000 -2.536
Polar
3z2-r2-5.073
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 4.686 0.000 0.000
y 0.000 5.832 0.000
z 0.000 0.000 4.783


<r2> (average value of r2) Å2
<r2> 52.825
(<r2>)1/2 7.268