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

using model chemistry: wB97X-D/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at wB97X-D/6-31G(2df,p)
 hartrees
Energy at 0K-154.988000
Energy at 298.15K-154.994721
HF Energy-154.988000
Nuclear repulsion energy84.308308
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 wB97X-D/6-31G(2df,p)
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 3136 3136 25.85 90.31 0.35 0.51
2 A1 2982 2982 53.71 203.50 0.03 0.06
3 A1 1530 1530 1.52 13.11 0.74 0.85
4 A1 1503 1503 0.09 14.67 0.75 0.86
5 A1 1285 1285 6.83 1.75 0.57 0.73
6 A1 986 986 32.84 7.90 0.39 0.56
7 A1 428 428 2.42 0.42 0.02 0.04
8 A2 3030 3030 0.00 13.71 0.75 0.86
9 A2 1488 1488 0.00 31.77 0.75 0.86
10 A2 1178 1178 0.00 4.77 0.75 0.86
11 A2 217 217 0.00 0.19 0.75 0.86
12 B1 3024 3024 138.31 93.61 0.75 0.86
13 B1 1500 1500 12.64 0.26 0.75 0.86
14 B1 1213 1213 7.54 1.99 0.75 0.86
15 B1 260 260 5.10 0.05 0.75 0.86
16 B2 3134 3134 32.31 69.94 0.75 0.86
17 B2 2970 2970 54.82 1.18 0.75 0.86
18 B2 1505 1505 13.58 2.68 0.75 0.86
19 B2 1471 1471 4.80 6.06 0.75 0.86
20 B2 1245 1245 127.50 0.25 0.75 0.86
21 B2 1148 1148 16.60 3.18 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17615.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17615.6 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 wB97X-D/6-31G(2df,p)
ABC
1.31801 0.33904 0.30045

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.587
C2 0.000 1.161 -0.193
C3 0.000 -1.161 -0.193
H4 0.000 2.016 0.486
H5 0.000 -2.016 0.486
H6 0.891 1.219 -0.838
H7 -0.891 1.219 -0.838
H8 -0.891 -1.219 -0.838
H9 0.891 -1.219 -0.838

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.39821.39822.01852.01852.07652.07652.07652.0765
C21.39822.32141.09223.24851.10201.10202.62222.6222
C31.39822.32143.24851.09222.62222.62221.10201.1020
H42.01851.09223.24854.03191.78431.78433.60783.6078
H52.01853.24851.09224.03193.60783.60781.78431.7843
H62.07651.10202.62221.78433.60781.78253.02072.4387
H72.07651.10202.62221.78433.60781.78252.43873.0207
H82.07652.62221.10203.60781.78433.02072.43871.7825
H92.07652.62221.10203.60781.78432.43873.02071.7825

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 107.657 O1 C2 H6 111.762
O1 C2 H7 111.762 O1 C3 H5 107.657
O1 C3 H8 111.762 O1 C3 H9 111.762
C2 O1 C3 112.228 H4 C2 H6 108.822
H4 C2 H7 108.822 H5 C3 H8 108.822
H5 C3 H9 108.822 H6 C2 H7 107.947
H8 C3 H9 107.947
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.245      
2 C -0.256      
3 C -0.256      
4 H 0.148      
5 H 0.148      
6 H 0.115      
7 H 0.115      
8 H 0.115      
9 H 0.115      


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 -1.185 1.185
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.830 0.000 0.000
y 0.000 -17.079 0.000
z 0.000 0.000 -20.656
Traceless
 xyz
x -0.963 0.000 0.000
y 0.000 3.164 0.000
z 0.000 0.000 -2.201
Polar
3z2-r2-4.402
x2-y2-2.751
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.861 0.000 0.000
y 0.000 4.782 0.000
z 0.000 0.000 3.778


<r2> (average value of r2) Å2
<r2> 51.889
(<r2>)1/2 7.203