return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B97D3/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/Def2TZVPP
 hartrees
Energy at 0K-155.000759
Energy at 298.15K-155.007386
HF Energy-155.000759
Nuclear repulsion energy83.611644
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 B97D3/Def2TZVPP
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 3062 3020 27.15 110.29 0.29 0.45
2 A1 2914 2874 73.06 306.17 0.02 0.04
3 A1 1485 1465 1.67 9.22 0.74 0.85
4 A1 1457 1437 0.02 5.72 0.74 0.85
5 A1 1240 1223 4.91 1.39 0.65 0.79
6 A1 912 899 35.53 7.04 0.45 0.62
7 A1 409 403 2.23 0.79 0.11 0.19
8 A2 2950 2910 0.00 23.34 0.75 0.86
9 A2 1449 1429 0.00 21.67 0.75 0.86
10 A2 1137 1121 0.00 5.53 0.75 0.86
11 A2 212 209 0.00 0.47 0.75 0.86
12 B1 2945 2904 158.87 114.15 0.75 0.86
13 B1 1459 1439 10.67 0.16 0.75 0.86
14 B1 1168 1152 6.44 0.83 0.75 0.86
15 B1 246 243 5.34 0.03 0.75 0.86
16 B2 3060 3018 37.04 75.37 0.75 0.86
17 B2 2900 2860 65.75 3.13 0.75 0.86
18 B2 1467 1447 11.13 3.22 0.75 0.86
19 B2 1429 1410 4.21 3.39 0.75 0.86
20 B2 1155 1139 75.87 0.00 0.75 0.86
21 B2 1089 1074 67.79 3.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17071.8 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 16837.9 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 B97D3/Def2TZVPP
ABC
1.29590 0.33279 0.29461

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.594
C2 0.000 1.174 -0.197
C3 0.000 -1.174 -0.197
H4 0.000 2.027 0.487
H5 0.000 -2.027 0.487
H6 0.894 1.228 -0.841
H7 -0.894 1.228 -0.841
H8 -0.894 -1.228 -0.841
H9 0.894 -1.228 -0.841

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41581.41582.02972.02972.08962.08962.08962.0896
C21.41582.34781.09313.27291.10291.10292.64242.6424
C31.41582.34783.27291.09312.64242.64241.10291.1029
H42.02971.09313.27294.05361.78861.78863.62693.6269
H52.02973.27291.09314.05363.62693.62691.78861.7886
H62.08961.10292.64241.78863.62691.78803.03792.4559
H72.08961.10292.64241.78863.62691.78802.45593.0379
H82.08962.64241.10293.62691.78863.03792.45591.7880
H92.08962.64241.10293.62691.78862.45593.03791.7880

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 107.301 O1 C2 H6 111.520
O1 C2 H7 111.520 O1 C3 H5 107.301
O1 C3 H8 111.520 O1 C3 H9 111.520
C2 O1 C3 112.029 H4 C2 H6 109.072
H4 C2 H7 109.072 H5 C3 H8 109.072
H5 C3 H9 109.072 H6 C2 H7 108.306
H8 C3 H9 108.306
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.300      
2 C -0.048      
3 C -0.048      
4 H 0.084      
5 H 0.084      
6 H 0.057      
7 H 0.057      
8 H 0.057      
9 H 0.057      


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 -1.175 1.175
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.317 0.000 0.000
y 0.000 -17.546 0.000
z 0.000 0.000 -21.305
Traceless
 xyz
x -0.892 0.000 0.000
y 0.000 3.265 0.000
z 0.000 0.000 -2.374
Polar
3z2-r2-4.747
x2-y2-2.771
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.556 0.000 0.000
y 0.000 5.652 0.000
z 0.000 0.000 4.517


<r2> (average value of r2) Å2
<r2> 52.892
(<r2>)1/2 7.273