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

using model chemistry: B3LYPultrafine/6-311G*

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/6-311G*
 hartrees
Energy at 0K-155.064050
Energy at 298.15K-155.070741
HF Energy-155.064050
Nuclear repulsion energy83.868817
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/6-311G*
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 3117 3012 33.48 102.45 0.32 0.49
2 A1 2972 2872 73.40 240.05 0.04 0.07
3 A1 1536 1484 1.97 15.06 0.75 0.85
4 A1 1506 1455 0.17 11.71 0.75 0.86
5 A1 1277 1234 5.21 2.46 0.59 0.74
6 A1 947 915 38.86 8.36 0.53 0.69
7 A1 417 403 2.19 0.62 0.05 0.10
8 A2 3005 2904 0.00 21.29 0.75 0.86
9 A2 1497 1447 0.00 31.47 0.75 0.86
10 A2 1172 1132 0.00 6.74 0.75 0.86
11 A2 221 214 0.00 0.48 0.75 0.86
12 B1 3002 2901 184.32 118.00 0.75 0.86
13 B1 1507 1456 14.41 0.02 0.75 0.86
14 B1 1203 1163 7.40 1.90 0.75 0.86
15 B1 253 245 6.74 0.03 0.75 0.86
16 B2 3116 3011 39.92 83.74 0.75 0.86
17 B2 2957 2857 61.38 3.06 0.75 0.86
18 B2 1515 1464 16.65 4.60 0.75 0.86
19 B2 1476 1426 4.09 7.87 0.75 0.86
20 B2 1206 1165 89.83 0.00 0.75 0.86
21 B2 1127 1089 54.40 4.19 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17515.1 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 16924.9 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/6-311G*
ABC
1.31225 0.33380 0.29608

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.588
C2 0.000 1.172 -0.195
C3 0.000 -1.172 -0.195
H4 0.000 2.020 0.490
H5 0.000 -2.020 0.490
H6 0.892 1.232 -0.837
H7 -0.892 1.232 -0.837
H8 -0.892 -1.232 -0.837
H9 0.892 -1.232 -0.837

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40971.40972.02222.02222.08422.08422.08422.0842
C21.40972.34361.09043.26441.10031.10032.64292.6429
C31.40972.34363.26441.09042.64292.64291.10031.1003
H42.02221.09043.26444.03971.78241.78243.62353.6235
H52.02223.26441.09044.03973.62353.62351.78241.7824
H62.08421.10032.64291.78243.62351.78373.04172.4638
H72.08421.10032.64291.78243.62351.78372.46383.0417
H82.08422.64291.10033.62351.78243.04172.46381.7837
H92.08422.64291.10033.62351.78242.46383.04171.7837

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 107.285 O1 C2 H6 111.687
O1 C2 H7 111.687 O1 C3 H5 107.285
O1 C3 H8 111.687 O1 C3 H9 111.687
C2 O1 C3 112.458 H4 C2 H6 108.906
H4 C2 H7 108.906 H5 C3 H8 108.906
H5 C3 H9 108.906 H6 C2 H7 108.304
H8 C3 H9 108.304
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.327      
2 C -0.415      
3 C -0.415      
4 H 0.212      
5 H 0.212      
6 H 0.183      
7 H 0.183      
8 H 0.183      
9 H 0.183      


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 -1.293 1.293
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.382 0.000 0.000
y 0.000 -17.326 0.000
z 0.000 0.000 -21.300
Traceless
 xyz
x -1.069 0.000 0.000
y 0.000 3.516 0.000
z 0.000 0.000 -2.447
Polar
3z2-r2-4.893
x2-y2-3.056
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.891 0.000 0.000
y 0.000 4.838 0.000
z 0.000 0.000 3.832


<r2> (average value of r2) Å2
<r2> 52.682
(<r2>)1/2 7.258