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

using model chemistry: PBEPBEultrafine/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/cc-pVDZ
 hartrees
Energy at 0K-154.827573
Energy at 298.15K-154.834210
HF Energy-154.827573
Nuclear repulsion energy83.357239
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 PBEPBEultrafine/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3056 3038 21.91 112.70 0.32 0.49
2 A1 2888 2871 61.41 270.02 0.03 0.05
3 A1 1445 1437 1.02 14.90 0.73 0.84
4 A1 1414 1406 0.30 16.26 0.75 0.85
5 A1 1213 1206 5.67 1.01 0.61 0.76
6 A1 938 933 33.97 6.45 0.53 0.69
7 A1 402 399 2.10 0.64 0.06 0.12
8 A2 2931 2914 0.00 26.91 0.75 0.86
9 A2 1395 1387 0.00 36.17 0.75 0.86
10 A2 1108 1102 0.00 4.54 0.75 0.86
11 A2 225 224 0.00 0.41 0.75 0.86
12 B1 2923 2906 160.15 123.62 0.75 0.86
13 B1 1402 1394 11.73 0.20 0.75 0.86
14 B1 1140 1133 6.29 1.90 0.75 0.86
15 B1 252 251 4.84 0.05 0.75 0.86
16 B2 3055 3037 28.32 87.79 0.75 0.86
17 B2 2871 2855 68.38 3.91 0.75 0.86
18 B2 1417 1409 17.58 4.89 0.75 0.86
19 B2 1386 1378 7.28 8.18 0.75 0.86
20 B2 1163 1156 120.68 0.13 0.75 0.86
21 B2 1089 1083 13.60 3.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16856.8 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 16759.1 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 PBEPBEultrafine/cc-pVDZ
ABC
1.27003 0.33413 0.29498

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.600
C2 0.000 1.168 -0.197
C3 0.000 -1.168 -0.197
H4 0.000 2.037 0.490
H5 0.000 -2.037 0.490
H6 0.903 1.229 -0.854
H7 -0.903 1.229 -0.854
H8 -0.903 -1.229 -0.854
H9 0.903 -1.229 -0.854

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41351.41352.03952.03952.10712.10712.10712.1071
C21.41352.33511.10733.27681.11871.11872.64392.6439
C31.41352.33513.27681.10732.64392.64391.11871.1187
H42.03951.10733.27684.07311.80941.80943.64463.6446
H52.03953.27681.10734.07313.64463.64461.80941.8094
H62.10711.11872.64391.80943.64461.80633.04992.4575
H72.10711.11872.64391.80943.64461.80632.45753.0499
H82.10712.64391.11873.64461.80943.04992.45751.8063
H92.10712.64391.11873.64461.80942.45753.04991.8063

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 112.110
O1 C2 H7 112.110 O1 C3 H5 107.386
O1 C3 H8 112.110 O1 C3 H9 112.110
C2 O1 C3 111.377 H4 C2 H6 108.742
H4 C2 H7 108.742 H5 C3 H8 108.742
H5 C3 H9 108.742 H6 C2 H7 107.666
H8 C3 H9 107.666
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.272      
2 C 0.064      
3 C 0.064      
4 H 0.039      
5 H 0.039      
6 H 0.017      
7 H 0.017      
8 H 0.017      
9 H 0.017      


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 -1.051 1.051
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.327 0.000 0.000
y 0.000 -17.442 0.000
z 0.000 0.000 -20.962
Traceless
 xyz
x -1.125 0.000 0.000
y 0.000 3.203 0.000
z 0.000 0.000 -2.078
Polar
3z2-r2-4.156
x2-y2-2.885
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.984 0.000 0.000
y 0.000 5.191 0.000
z 0.000 0.000 3.929


<r2> (average value of r2) Å2
<r2> 52.925
(<r2>)1/2 7.275