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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-154.887463
Energy at 298.15K-154.894064
HF Energy-154.887463
Nuclear repulsion energy83.496448
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/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 3046 3012 18.39 112.04 0.28 0.44
2 A1 2898 2865 67.77 359.77 0.02 0.03
3 A1 1458 1441 3.74 5.16 0.73 0.84
4 A1 1427 1411 0.01 3.37 0.72 0.84
5 A1 1219 1206 5.48 0.46 0.56 0.72
6 A1 917 907 35.18 6.90 0.37 0.54
7 A1 398 393 2.18 1.52 0.16 0.27
8 A2 2938 2905 0.00 28.20 0.75 0.86
9 A2 1426 1410 0.00 12.95 0.75 0.86
10 A2 1119 1106 0.00 1.84 0.75 0.86
11 A2 211 208 0.00 0.31 0.75 0.86
12 B1 2930 2897 131.96 122.79 0.75 0.86
13 B1 1433 1417 14.36 0.09 0.75 0.86
14 B1 1145 1132 6.13 0.05 0.75 0.86
15 B1 238 235 4.73 0.00 0.75 0.86
16 B2 3045 3011 26.92 71.36 0.75 0.86
17 B2 2887 2854 63.67 4.30 0.75 0.86
18 B2 1441 1424 12.73 1.93 0.75 0.86
19 B2 1401 1385 1.26 1.93 0.75 0.86
20 B2 1148 1135 95.05 0.33 0.75 0.86
21 B2 1084 1072 36.14 1.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16903.4 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 16714.1 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/aug-cc-pVTZ
ABC
1.28496 0.33303 0.29448

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.598
C2 0.000 1.173 -0.198
C3 0.000 -1.173 -0.198
H4 0.000 2.031 0.485
H5 0.000 -2.031 0.485
H6 0.897 1.225 -0.844
H7 -0.897 1.225 -0.844
H8 -0.897 -1.225 -0.844
H9 0.897 -1.225 -0.844

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41721.41722.03392.03392.09352.09352.09352.0935
C21.41722.34561.09693.27571.10681.10682.64032.6403
C31.41722.34563.27571.09692.64032.64031.10681.1068
H42.03391.09693.27574.06171.79481.79483.62933.6293
H52.03393.27571.09694.06173.62933.62931.79481.7948
H62.09351.10682.64031.79483.62931.79473.03682.4498
H72.09351.10682.64031.79483.62931.79472.44983.0368
H82.09352.64031.10683.62931.79483.03682.44981.7947
H92.09352.64031.10683.62931.79482.44983.03681.7947

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 107.319 O1 C2 H6 111.500
O1 C2 H7 111.500 O1 C3 H5 107.319
O1 C3 H8 111.500 O1 C3 H9 111.500
C2 O1 C3 111.702 H4 C2 H6 109.066
H4 C2 H7 109.066 H5 C3 H8 109.066
H5 C3 H9 109.066 H6 C2 H7 108.340
H8 C3 H9 108.340
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.374      
2 C -0.514      
3 C -0.514      
4 H 0.248      
5 H 0.248      
6 H 0.226      
7 H 0.226      
8 H 0.226      
9 H 0.226      


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 -1.169 1.169
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.545 0.000 0.000
y 0.000 -17.849 0.000
z 0.000 0.000 -21.671
Traceless
 xyz
x -0.785 0.000 0.000
y 0.000 3.259 0.000
z 0.000 0.000 -2.474
Polar
3z2-r2-4.948
x2-y2-2.696
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.943 0.000 0.000
y 0.000 6.158 0.000
z 0.000 0.000 5.046


<r2> (average value of r2) Å2
<r2> 53.127
(<r2>)1/2 7.289