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

using model chemistry: mPW1PW91/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 mPW1PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-155.004621
Energy at 298.15K-155.011265
HF Energy-155.004621
Nuclear repulsion energy83.983535
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 mPW1PW91/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 3151 3151 22.92 98.48 0.32 0.48
2 A1 2999 2999 64.07 337.40 0.02 0.03
3 A1 1491 1491 4.35 4.45 0.72 0.84
4 A1 1463 1463 0.14 3.51 0.73 0.85
5 A1 1261 1261 6.66 0.42 0.72 0.84
6 A1 968 968 35.64 7.78 0.32 0.49
7 A1 412 412 2.43 1.11 0.12 0.22
8 A2 3054 3054 0.00 19.75 0.75 0.86
9 A2 1458 1458 0.00 11.92 0.75 0.86
10 A2 1152 1152 0.00 1.67 0.75 0.86
11 A2 198 198 0.00 0.19 0.75 0.86
12 B1 3049 3049 127.31 102.82 0.75 0.86
13 B1 1470 1470 15.39 0.07 0.75 0.86
14 B1 1183 1183 6.45 0.00 0.75 0.86
15 B1 240 240 5.26 0.01 0.75 0.86
16 B2 3150 3150 29.32 67.04 0.75 0.86
17 B2 2988 2988 64.62 1.69 0.75 0.86
18 B2 1473 1473 13.44 1.48 0.75 0.86
19 B2 1432 1432 0.96 1.60 0.75 0.86
20 B2 1217 1217 123.73 0.82 0.75 0.86
21 B2 1122 1122 19.33 1.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17464.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17464.6 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 mPW1PW91/daug-cc-pVDZ
ABC
1.30925 0.33599 0.29792

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.589
C2 0.000 1.167 -0.195
C3 0.000 -1.167 -0.195
H4 0.000 2.021 0.490
H5 0.000 -2.021 0.490
H6 0.895 1.222 -0.837
H7 -0.895 1.222 -0.837
H8 -0.895 -1.222 -0.837
H9 0.895 -1.222 -0.837

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40561.40562.02382.02382.08052.08052.08052.0805
C21.40562.33401.09473.26101.10351.10352.63082.6308
C31.40562.33403.26101.09472.63082.63081.10351.1035
H42.02381.09473.26104.04281.78941.78943.61683.6168
H52.02383.26101.09474.04283.61683.61681.78941.7894
H62.08051.10352.63081.78943.61681.79083.02962.4437
H72.08051.10352.63081.78943.61681.79082.44373.0296
H82.08052.63081.10353.61681.78943.02962.44371.7908
H92.08052.63081.10353.61681.78942.44373.02961.7908

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 107.429 O1 C2 H6 111.460
O1 C2 H7 111.460 O1 C3 H5 107.429
O1 C3 H8 111.460 O1 C3 H9 111.460
C2 O1 C3 112.248 H4 C2 H6 108.983
H4 C2 H7 108.983 H5 C3 H8 108.983
H5 C3 H9 108.983 H6 C2 H7 108.469
H8 C3 H9 108.469
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.623      
2 C 0.960      
3 C 0.960      
4 H -0.240      
5 H -0.240      
6 H -0.204      
7 H -0.204      
8 H -0.204      
9 H -0.204      


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 -1.247 1.247
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.247 0.000 0.000
y 0.000 -17.490 0.000
z 0.000 0.000 -21.382
Traceless
 xyz
x -0.811 0.000 0.000
y 0.000 3.324 0.000
z 0.000 0.000 -2.513
Polar
3z2-r2-5.026
x2-y2-2.757
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.659 0.000 0.000
y 0.000 5.760 0.000
z 0.000 0.000 4.739


<r2> (average value of r2) Å2
<r2> 52.514
(<r2>)1/2 7.247