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

using model chemistry: B2PLYP/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 B2PLYP/6-31G**
 hartrees
Energy at 0K-154.861460
Energy at 298.15K-154.868169
HF Energy-154.705210
Nuclear repulsion energy83.914765
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 B2PLYP/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 3178 3178 29.86 89.31 0.35 0.52
2 A1 3027 3027 57.31 205.42 0.03 0.06
3 A1 1557 1557 0.20 20.76 0.74 0.85
4 A1 1525 1525 0.02 13.57 0.73 0.85
5 A1 1288 1288 5.11 3.78 0.59 0.74
6 A1 964 964 33.63 9.26 0.39 0.57
7 A1 420 420 2.63 0.50 0.02 0.04
8 A2 3075 3075 0.00 13.94 0.75 0.86
9 A2 1519 1519 0.00 38.84 0.75 0.86
10 A2 1182 1182 0.00 8.07 0.75 0.86
11 A2 221 221 0.00 0.22 0.75 0.86
12 B1 3071 3071 147.26 92.86 0.75 0.86
13 B1 1529 1529 8.67 0.45 0.75 0.86
14 B1 1217 1217 7.06 3.51 0.75 0.86
15 B1 258 258 6.38 0.07 0.75 0.86
16 B2 3176 3176 33.05 72.19 0.75 0.86
17 B2 3014 3014 54.95 1.17 0.75 0.86
18 B2 1538 1538 11.88 3.12 0.75 0.86
19 B2 1490 1490 12.24 9.08 0.75 0.86
20 B2 1224 1224 108.64 0.00 0.75 0.86
21 B2 1142 1142 32.17 4.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17807.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17807.5 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 B2PLYP/6-31G**
ABC
1.30110 0.33575 0.29687

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.594
C2 0.000 1.168 -0.197
C3 0.000 -1.168 -0.197
H4 0.000 2.019 0.483
H5 0.000 -2.019 0.483
H6 0.890 1.224 -0.839
H7 -0.890 1.224 -0.839
H8 -0.890 -1.224 -0.839
H9 0.890 -1.224 -0.839

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41111.41112.02232.02232.08432.08432.08432.0843
C21.41112.33661.08923.25921.09841.09842.63212.6321
C31.41112.33663.25921.08922.63212.63211.09841.0984
H42.02231.08923.25924.03851.78051.78053.61373.6137
H52.02233.25921.08924.03853.61373.61371.78051.7805
H62.08431.09842.63211.78053.61371.77913.02672.4486
H72.08431.09842.63211.78053.61371.77912.44863.0267
H82.08432.63211.09843.61371.78053.02672.44861.7791
H92.08432.63211.09843.61371.78052.44863.02671.7791

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 107.266 O1 C2 H6 111.714
O1 C2 H7 111.714 O1 C3 H5 107.266
O1 C3 H8 111.714 O1 C3 H9 111.714
C2 O1 C3 111.775 H4 C2 H6 108.960
H4 C2 H7 108.960 H5 C3 H8 108.960
H5 C3 H9 108.960 H6 C2 H7 108.165
H8 C3 H9 108.165
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.489      
2 C -0.054      
3 C -0.054      
4 H 0.119      
5 H 0.119      
6 H 0.090      
7 H 0.090      
8 H 0.090      
9 H 0.090      


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 -1.331 1.331
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.182 0.000 0.000
y 0.000 -17.038 0.000
z 0.000 0.000 -21.036
Traceless
 xyz
x -1.145 0.000 0.000
y 0.000 3.571 0.000
z 0.000 0.000 -2.426
Polar
3z2-r2-4.851
x2-y2-3.144
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.634 0.000 0.000
y 0.000 4.586 0.000
z 0.000 0.000 3.600


<r2> (average value of r2) Å2
<r2> 52.394
(<r2>)1/2 7.238