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

using model chemistry: PBE1PBE/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/6-31G**
 hartrees
Energy at 0K-154.838331
Energy at 298.15K-154.845059
HF Energy-154.838331
Nuclear repulsion energy84.263246
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 PBE1PBE/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3165 3017 26.58 93.17 0.35 0.51
2 A1 3011 2870 57.48 208.56 0.03 0.06
3 A1 1550 1477 0.94 20.77 0.74 0.85
4 A1 1518 1447 0.05 16.05 0.74 0.85
5 A1 1285 1225 5.08 3.06 0.59 0.75
6 A1 994 947 36.18 8.61 0.44 0.61
7 A1 420 400 2.61 0.46 0.02 0.04
8 A2 3057 2913 0.00 15.06 0.75 0.86
9 A2 1509 1439 0.00 41.01 0.75 0.86
10 A2 1180 1125 0.00 7.67 0.75 0.86
11 A2 228 217 0.00 0.25 0.75 0.86
12 B1 3051 2908 146.83 97.96 0.75 0.86
13 B1 1519 1448 12.59 0.37 0.75 0.86
14 B1 1214 1157 5.87 3.36 0.75 0.86
15 B1 261 249 6.54 0.07 0.75 0.86
16 B2 3163 3015 32.20 74.28 0.75 0.86
17 B2 2997 2857 56.57 1.57 0.75 0.86
18 B2 1527 1455 15.40 3.60 0.75 0.86
19 B2 1484 1414 6.26 9.99 0.75 0.86
20 B2 1249 1190 128.51 0.15 0.75 0.86
21 B2 1151 1097 14.85 4.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17766.5 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 16933.3 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 PBE1PBE/6-31G**
ABC
1.30832 0.33974 0.30058

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.590
C2 0.000 1.159 -0.195
C3 0.000 -1.159 -0.195
H4 0.000 2.015 0.486
H5 0.000 -2.015 0.486
H6 0.892 1.217 -0.840
H7 -0.892 1.217 -0.840
H8 -0.892 -1.217 -0.840
H9 0.892 -1.217 -0.840

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.39981.39982.01762.01762.07912.07912.07912.0791
C21.39982.31841.09313.24611.10271.10272.61942.6194
C31.39982.31843.24611.09312.61942.61941.10271.1027
H42.01761.09313.24614.02981.78571.78573.60573.6057
H52.01763.24611.09314.02983.60573.60571.78571.7857
H62.07911.10272.61941.78573.60571.78483.01902.4349
H72.07911.10272.61941.78573.60571.78482.43493.0190
H82.07912.61941.10273.60571.78573.01902.43491.7848
H92.07912.61941.10273.60571.78572.43493.01901.7848

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 107.425 O1 C2 H6 111.820
O1 C2 H7 111.820 O1 C3 H5 107.425
O1 C3 H8 111.820 O1 C3 H9 111.820
C2 O1 C3 111.812 H4 C2 H6 108.825
H4 C2 H7 108.825 H5 C3 H8 108.825
H5 C3 H9 108.825 H6 C2 H7 108.053
H8 C3 H9 108.053
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.447      
2 C -0.263      
3 C -0.263      
4 H 0.185      
5 H 0.185      
6 H 0.151      
7 H 0.151      
8 H 0.151      
9 H 0.151      


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 -1.288 1.288
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.032 0.000 0.000
y 0.000 -16.940 0.000
z 0.000 0.000 -20.846
Traceless
 xyz
x -1.139 0.000 0.000
y 0.000 3.500 0.000
z 0.000 0.000 -2.360
Polar
3z2-r2-4.720
x2-y2-3.093
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.636 0.000 0.000
y 0.000 4.513 0.000
z 0.000 0.000 3.569


<r2> (average value of r2) Å2
<r2> 51.928
(<r2>)1/2 7.206