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

using model chemistry: B2PLYP/daug-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 B2PLYP/daug-cc-pVDZ
 hartrees
Energy at 0K-154.884940
Energy at 298.15K-154.891580
HF Energy-154.718176
Nuclear repulsion energy83.549317
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/daug-cc-pVDZ
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 3150 3150 22.70 98.61 0.31 0.48
2 A1 3001 3001 65.77 341.32 0.02 0.03
3 A1 1498 1498 3.12 5.08 0.73 0.85
4 A1 1467 1467 0.02 3.06 0.75 0.85
5 A1 1260 1260 6.58 0.45 0.68 0.81
6 A1 939 939 35.35 9.56 0.27 0.43
7 A1 414 414 2.38 1.17 0.14 0.24
8 A2 3054 3054 0.00 18.82 0.75 0.86
9 A2 1467 1467 0.00 12.08 0.75 0.86
10 A2 1153 1153 0.00 1.80 0.75 0.86
11 A2 196 196 0.00 0.19 0.75 0.86
12 B1 3049 3049 126.35 105.16 0.75 0.86
13 B1 1480 1480 13.17 0.05 0.75 0.86
14 B1 1184 1184 7.35 0.01 0.75 0.86
15 B1 244 244 5.30 0.00 0.75 0.86
16 B2 3150 3150 29.36 66.95 0.75 0.86
17 B2 2990 2990 60.70 1.70 0.75 0.86
18 B2 1482 1482 11.51 1.42 0.75 0.86
19 B2 1435 1435 2.18 1.59 0.75 0.86
20 B2 1191 1191 100.06 0.56 0.75 0.86
21 B2 1111 1111 40.06 1.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17457.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17457.5 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/daug-cc-pVDZ
ABC
1.29064 0.33276 0.29451

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.596
C2 0.000 1.174 -0.198
C3 0.000 -1.174 -0.198
H4 0.000 2.029 0.486
H5 0.000 -2.029 0.486
H6 0.897 1.223 -0.840
H7 -0.897 1.223 -0.840
H8 -0.897 -1.223 -0.840
H9 0.897 -1.223 -0.840

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41741.41742.03192.03192.08852.08852.08852.0885
C21.41742.34841.09513.27551.10391.10392.63882.6388
C31.41742.34843.27551.09512.63882.63881.10391.1039
H42.03191.09513.27554.05801.79271.79273.62493.6249
H52.03193.27551.09514.05803.62493.62491.79271.7927
H62.08851.10392.63881.79273.62491.79323.03302.4462
H72.08851.10392.63881.79273.62491.79322.44623.0330
H82.08852.63881.10393.62491.79273.03302.44621.7932
H92.08852.63881.10393.62491.79272.44623.03301.7932

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 107.244 O1 C2 H6 111.252
O1 C2 H7 111.252 O1 C3 H5 107.244
O1 C3 H8 111.252 O1 C3 H9 111.252
C2 O1 C3 111.875 H4 C2 H6 109.214
H4 C2 H7 109.214 H5 C3 H8 109.214
H5 C3 H9 109.214 H6 C2 H7 108.624
H8 C3 H9 108.624
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.691      
2 C 1.302      
3 C 1.302      
4 H -0.338      
5 H -0.338      
6 H -0.309      
7 H -0.309      
8 H -0.309      
9 H -0.309      


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 -1.308 1.308
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.588 0.000 0.000
y 0.000 -17.729 0.000
z 0.000 0.000 -21.783
Traceless
 xyz
x -0.832 0.000 0.000
y 0.000 3.457 0.000
z 0.000 0.000 -2.624
Polar
3z2-r2-5.249
x2-y2-2.859
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.698 0.000 0.000
y 0.000 5.830 0.000
z 0.000 0.000 4.814


<r2> (average value of r2) Å2
<r2> 53.096
(<r2>)1/2 7.287