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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/cc-pVDZ
 hartrees
Energy at 0K-155.029430
Energy at 298.15K-155.036105
HF Energy-155.029430
Nuclear repulsion energy83.672466
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 B3LYPultrafine/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 3115 3021 25.31 110.93 0.32 0.48
2 A1 2961 2872 61.96 256.09 0.03 0.06
3 A1 1494 1450 0.72 12.33 0.73 0.84
4 A1 1467 1423 0.55 16.66 0.75 0.85
5 A1 1257 1219 7.00 1.30 0.54 0.70
6 A1 955 926 35.51 7.63 0.49 0.66
7 A1 413 400 2.40 0.58 0.04 0.08
8 A2 3001 2911 0.00 21.27 0.75 0.86
9 A2 1449 1406 0.00 34.00 0.75 0.86
10 A2 1147 1112 0.00 4.36 0.75 0.86
11 A2 218 211 0.00 0.28 0.75 0.86
12 B1 2996 2906 161.81 118.48 0.75 0.86
13 B1 1457 1413 10.53 0.19 0.75 0.86
14 B1 1180 1144 7.81 1.92 0.75 0.86
15 B1 253 245 5.44 0.05 0.75 0.86
16 B2 3113 3020 33.52 87.32 0.75 0.86
17 B2 2945 2857 60.47 2.63 0.75 0.86
18 B2 1468 1424 15.94 4.25 0.75 0.86
19 B2 1439 1395 9.66 6.71 0.75 0.86
20 B2 1202 1166 122.67 0.20 0.75 0.86
21 B2 1120 1087 24.30 3.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17323.8 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 16804.1 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 B3LYPultrafine/cc-pVDZ
ABC
1.29944 0.33373 0.29579

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.590
C2 0.000 1.170 -0.194
C3 0.000 -1.170 -0.194
H4 0.000 2.029 0.493
H5 0.000 -2.029 0.493
H6 0.897 1.233 -0.845
H7 -0.897 1.233 -0.845
H8 -0.897 -1.233 -0.845
H9 0.897 -1.233 -0.845

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40861.40862.03112.03112.09432.09432.09432.0943
C21.40862.33951.09993.27141.11021.11022.64622.6462
C31.40862.33953.27141.09992.64622.64621.11021.1102
H42.03111.09993.27144.05751.79651.79653.63793.6379
H52.03113.27141.09994.05753.63793.63791.79651.7965
H62.09431.11022.64621.79653.63791.79483.05022.4663
H72.09431.11022.64621.79653.63791.79482.46633.0502
H82.09432.64621.11023.63791.79653.05022.46631.7948
H92.09432.64621.11023.63791.79652.46633.05021.7948

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 107.492 O1 C2 H6 111.954
O1 C2 H7 111.954 O1 C3 H5 107.492
O1 C3 H8 111.954 O1 C3 H9 111.954
C2 O1 C3 112.290 H4 C2 H6 108.749
H4 C2 H7 108.749 H5 C3 H8 108.749
H5 C3 H9 108.749 H6 C2 H7 107.862
H8 C3 H9 107.862
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.311      
2 C 0.120      
3 C 0.120      
4 H 0.027      
5 H 0.027      
6 H 0.004      
7 H 0.004      
8 H 0.004      
9 H 0.004      


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 -1.143 1.143
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.222 0.000 0.000
y 0.000 -17.332 0.000
z 0.000 0.000 -20.956
Traceless
 xyz
x -1.078 0.000 0.000
y 0.000 3.257 0.000
z 0.000 0.000 -2.179
Polar
3z2-r2-4.357
x2-y2-2.890
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.851 0.000 0.000
y 0.000 4.968 0.000
z 0.000 0.000 3.798


<r2> (average value of r2) Å2
<r2> 52.719
(<r2>)1/2 7.261