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

using model chemistry: B2PLYP/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-154.959351
Energy at 298.15K-154.966026
HF Energy-154.761897
Nuclear repulsion energy83.985702
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/aug-cc-pVTZ
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 3143 3020 19.65 99.09 0.29 0.45
2 A1 3000 2883 64.18 331.50 0.02 0.03
3 A1 1526 1467 3.19 5.38 0.73 0.85
4 A1 1497 1439 0.00 2.32 0.73 0.85
5 A1 1276 1226 6.43 0.42 0.70 0.82
6 A1 944 907 36.08 9.03 0.28 0.43
7 A1 413 397 2.43 1.09 0.15 0.25
8 A2 3046 2927 0.00 18.17 0.75 0.86
9 A2 1499 1441 0.00 11.41 0.75 0.86
10 A2 1171 1125 0.00 1.64 0.75 0.86
11 A2 210 201 0.00 0.18 0.75 0.86
12 B1 3040 2921 119.98 101.99 0.75 0.86
13 B1 1508 1450 13.23 0.05 0.75 0.86
14 B1 1200 1153 7.49 0.01 0.75 0.86
15 B1 248 238 5.22 0.00 0.75 0.86
16 B2 3142 3019 28.64 64.25 0.75 0.86
17 B2 2991 2874 55.96 2.03 0.75 0.86
18 B2 1512 1453 11.07 1.36 0.75 0.86
19 B2 1468 1411 2.79 1.33 0.75 0.86
20 B2 1203 1156 96.06 0.50 0.75 0.86
21 B2 1124 1081 47.14 1.81 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17579.7 cm-1
Scaled (by 0.961) Zero Point Vibrational Energy (zpe) 16894.1 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/aug-cc-pVTZ
ABC
1.30798 0.33552 0.29701

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/aug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.593
C2 0.000 1.170 -0.197
C3 0.000 -1.170 -0.197
H4 0.000 2.019 0.481
H5 0.000 -2.019 0.481
H6 0.889 1.219 -0.835
H7 -0.889 1.219 -0.835
H8 -0.889 -1.219 -0.835
H9 0.889 -1.219 -0.835

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41141.41142.02202.02202.07702.07702.07702.0770
C21.41142.33981.08643.26011.09531.09532.62772.6277
C31.41142.33983.26011.08642.62772.62771.09531.0953
H42.02201.08643.26014.03791.77791.77793.60653.6065
H52.02203.26011.08644.03793.60653.60651.77791.7779
H62.07701.09532.62771.77793.60651.77833.01792.4384
H72.07701.09532.62771.77793.60651.77832.43843.0179
H82.07702.62771.09533.60651.77793.01792.43841.7783
H92.07702.62771.09533.60651.77792.43843.01791.7783

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 107.386 O1 C2 H6 111.284
O1 C2 H7 111.284 O1 C3 H5 107.386
O1 C3 H8 111.284 O1 C3 H9 111.284
C2 O1 C3 111.974 H4 C2 H6 109.154
H4 C2 H7 109.154 H5 C3 H8 109.154
H5 C3 H9 109.154 H6 C2 H7 108.536
H8 C3 H9 108.536
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.436      
2 C -0.662      
3 C -0.662      
4 H 0.305      
5 H 0.305      
6 H 0.287      
7 H 0.287      
8 H 0.287      
9 H 0.287      


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 -1.305 1.305
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.396 0.000 0.000
y 0.000 -17.653 0.000
z 0.000 0.000 -21.619
Traceless
 xyz
x -0.760 0.000 0.000
y 0.000 3.354 0.000
z 0.000 0.000 -2.595
Polar
3z2-r2-5.189
x2-y2-2.743
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.602 0.000 0.000
y 0.000 5.741 0.000
z 0.000 0.000 4.722


<r2> (average value of r2) Å2
<r2> 52.628
(<r2>)1/2 7.255