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

using model chemistry: BLYP/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 BLYP/6-31G
 hartrees
Energy at 0K-154.909713
Energy at 298.15K-154.916265
HF Energy-154.909713
Nuclear repulsion energy81.501996
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 BLYP/6-31G
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 3079 3055 31.21 96.98 0.33 0.49
2 A1 2915 2893 62.98 230.93 0.03 0.06
3 A1 1514 1502 0.53 30.03 0.74 0.85
4 A1 1468 1457 0.12 14.41 0.68 0.81
5 A1 1216 1207 0.00 6.46 0.69 0.82
6 A1 827 820 21.36 10.44 0.38 0.55
7 A1 390 387 3.39 0.83 0.11 0.20
8 A2 2958 2936 0.00 22.59 0.75 0.86
9 A2 1479 1468 0.00 50.41 0.75 0.86
10 A2 1110 1102 0.00 15.92 0.75 0.86
11 A2 221 219 0.00 0.33 0.75 0.86
12 B1 2957 2934 178.09 104.24 0.75 0.86
13 B1 1486 1475 12.73 0.96 0.75 0.86
14 B1 1142 1133 2.59 5.54 0.75 0.86
15 B1 233 231 7.77 0.01 0.75 0.86
16 B2 3076 3053 28.09 81.36 0.75 0.86
17 B2 2901 2879 60.45 4.21 0.75 0.86
18 B2 1496 1485 15.57 6.03 0.75 0.86
19 B2 1439 1428 8.58 11.92 0.75 0.86
20 B2 1117 1108 21.72 3.90 0.75 0.86
21 B2 1016 1008 78.15 3.89 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17018.5 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 16889.2 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 BLYP/6-31G
ABC
1.24275 0.31269 0.27666

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.611
C2 0.000 1.217 -0.207
C3 0.000 -1.217 -0.207
H4 0.000 2.056 0.502
H5 0.000 -2.056 0.502
H6 0.901 1.278 -0.851
H7 -0.901 1.278 -0.851
H8 -0.901 -1.278 -0.851
H9 0.901 -1.278 -0.851

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.46591.46592.05932.05932.14002.14002.14002.1400
C21.46592.43371.09863.34911.10901.10902.72912.7291
C31.46592.43373.34911.09862.72912.72911.10901.1090
H42.05931.09863.34914.11281.80221.80223.70893.7089
H52.05933.34911.09864.11283.70893.70891.80221.8022
H62.14001.10902.72911.80223.70891.80173.12642.5550
H72.14001.10902.72911.80223.70891.80172.55503.1264
H82.14002.72911.10903.70891.80223.12642.55501.8017
H92.14002.72911.10903.70891.80222.55503.12641.8017

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 105.942 O1 C2 H6 111.668
O1 C2 H7 111.668 O1 C3 H5 105.942
O1 C3 H8 111.668 O1 C3 H9 111.668
C2 O1 C3 112.214 H4 C2 H6 109.435
H4 C2 H7 109.435 H5 C3 H8 109.435
H5 C3 H9 109.435 H6 C2 H7 108.640
H8 C3 H9 108.640
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.459      
2 C -0.143      
3 C -0.143      
4 H 0.145      
5 H 0.145      
6 H 0.114      
7 H 0.114      
8 H 0.114      
9 H 0.114      


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 -1.592 1.592
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.308 0.000 0.000
y 0.000 -16.656 0.000
z 0.000 0.000 -21.364
Traceless
 xyz
x -1.298 0.000 0.000
y 0.000 4.180 0.000
z 0.000 0.000 -2.882
Polar
3z2-r2-5.764
x2-y2-3.652
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.586 0.000 0.000
y 0.000 4.910 0.000
z 0.000 0.000 3.680


<r2> (average value of r2) Å2
<r2> 55.040
(<r2>)1/2 7.419