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

using model chemistry: HF/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 HF/aug-cc-pVTZ
 hartrees
Energy at 0K-154.129764
Energy at 298.15K-154.136534
HF Energy-154.129764
Nuclear repulsion energy84.825230
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 HF/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 3248 2957 33.64 102.24 0.26 0.42
2 A1 3129 2849 72.12 301.73 0.02 0.04
3 A1 1634 1488 2.11 2.77 0.71 0.83
4 A1 1621 1475 1.54 4.21 0.73 0.85
5 A1 1389 1264 11.97 0.92 0.36 0.53
6 A1 1031 939 39.72 10.34 0.28 0.44
7 A1 438 399 2.96 0.76 0.07 0.12
8 A2 3161 2878 0.00 12.03 0.75 0.86
9 A2 1609 1465 0.00 10.14 0.75 0.86
10 A2 1266 1153 0.00 1.49 0.75 0.86
11 A2 199 182 0.00 0.07 0.75 0.86
12 B1 3162 2879 153.08 87.92 0.75 0.86
13 B1 1620 1475 12.08 0.06 0.75 0.86
14 B1 1302 1185 11.90 0.13 0.75 0.86
15 B1 256 233 6.46 0.01 0.75 0.86
16 B2 3246 2955 51.19 64.99 0.75 0.86
17 B2 3115 2836 57.56 0.82 0.75 0.86
18 B2 1618 1473 10.44 1.08 0.75 0.86
19 B2 1585 1443 6.33 0.74 0.75 0.86
20 B2 1333 1214 158.64 1.33 0.75 0.86
21 B2 1218 1109 45.58 1.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18589.7 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 16924.0 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 HF/aug-cc-pVTZ
ABC
1.37814 0.33715 0.30131

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.567
C2 0.000 1.167 -0.188
C3 0.000 -1.167 -0.188
H4 0.000 2.003 0.496
H5 0.000 -2.003 0.496
H6 0.883 1.230 -0.820
H7 -0.883 1.230 -0.820
H8 -0.883 -1.230 -0.820
H9 0.883 -1.230 -0.820

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.38971.38972.00462.00462.05382.05382.05382.0538
C21.38972.33341.08023.24281.08791.08792.63142.6314
C31.38972.33343.24281.08022.63142.63141.08791.0879
H42.00461.08023.24284.00671.76311.76313.60093.6009
H52.00463.24281.08024.00673.60093.60091.76311.7631
H62.05381.08792.63141.76313.60091.76563.02832.4603
H72.05381.08792.63141.76313.60091.76562.46033.0283
H82.05382.63141.08793.60091.76313.02832.46031.7656
H92.05382.63141.08793.60091.76312.46033.02831.7656

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 107.854 O1 C2 H6 111.402
O1 C2 H7 111.402 O1 C3 H5 107.854
O1 C3 H8 111.402 O1 C3 H9 111.402
C2 O1 C3 114.181 H4 C2 H6 108.822
H4 C2 H7 108.822 H5 C3 H8 108.822
H5 C3 H9 108.822 H6 C2 H7 108.477
H8 C3 H9 108.477
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.503      
2 C -0.764      
3 C -0.764      
4 H 0.356      
5 H 0.356      
6 H 0.330      
7 H 0.330      
8 H 0.330      
9 H 0.330      


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 -1.359 1.359
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.020 0.000 0.000
y 0.000 -17.405 0.000
z 0.000 0.000 -21.262
Traceless
 xyz
x -0.687 0.000 0.000
y 0.000 3.236 0.000
z 0.000 0.000 -2.550
Polar
3z2-r2-5.099
x2-y2-2.615
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.220 0.000 0.000
y 0.000 5.195 0.000
z 0.000 0.000 4.269


<r2> (average value of r2) Å2
<r2> 51.930
(<r2>)1/2 7.206