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

using model chemistry: MP2=FULL/daug-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 MP2=FULL/daug-cc-pVTZ
 hartrees
Energy at 0K-154.793226
Energy at 298.15K-154.799896
HF Energy-154.129077
Nuclear repulsion energy84.367262
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 MP2=FULL/daug-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 3177 3177 14.80 90.50 0.31 0.47
2 A1 3038 3038 57.31 318.97 0.01 0.03
3 A1 1542 1542 3.41 5.83 0.74 0.85
4 A1 1503 1503 0.05 1.48 0.75 0.86
5 A1 1280 1280 6.33 0.45 0.63 0.77
6 A1 965 965 36.30 8.87 0.23 0.38
7 A1 419 419 2.45 0.85 0.13 0.23
8 A2 3088 3088 0.00 13.90 0.75 0.86
9 A2 1514 1514 0.00 10.61 0.75 0.86
10 A2 1181 1181 0.00 1.27 0.75 0.86
11 A2 198 198 0.00 0.13 0.75 0.86
12 B1 3081 3081 97.64 90.22 0.75 0.86
13 B1 1526 1526 14.76 0.04 0.75 0.86
14 B1 1213 1213 7.03 0.02 0.75 0.86
15 B1 254 254 5.05 0.00 0.75 0.86
16 B2 3176 3176 23.12 56.59 0.75 0.86
17 B2 3032 3032 50.03 0.96 0.75 0.86
18 B2 1525 1525 11.14 1.01 0.75 0.86
19 B2 1471 1471 1.98 1.17 0.75 0.86
20 B2 1220 1220 104.05 0.70 0.75 0.86
21 B2 1137 1137 32.60 1.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17769.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 17769.7 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 MP2=FULL/daug-cc-pVTZ
ABC
1.29556 0.34208 0.30134

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.600
C2 0.000 1.158 -0.199
C3 0.000 -1.158 -0.199
H4 0.000 2.014 0.466
H5 0.000 -2.014 0.466
H6 0.887 1.196 -0.836
H7 -0.887 1.196 -0.836
H8 -0.887 -1.196 -0.836
H9 0.887 -1.196 -0.836

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40671.40672.01832.01832.06842.06842.06842.0684
C21.40672.31541.08443.24061.09271.09272.59462.5946
C31.40672.31543.24061.08442.59462.59461.09271.0927
H42.01831.08443.24064.02771.77531.77533.57573.5757
H52.01833.24061.08444.02773.57573.57571.77531.7753
H62.06841.09272.59461.77533.57571.77482.97852.3919
H72.06841.09272.59461.77533.57571.77482.39192.9785
H82.06842.59461.09273.57571.77532.97852.39191.7748
H92.06842.59461.09273.57571.77532.39192.97851.7748

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 107.527 O1 C2 H6 111.081
O1 C2 H7 111.081 O1 C3 H5 107.527
O1 C3 H8 111.081 O1 C3 H9 111.081
C2 O1 C3 110.772 H4 C2 H6 109.257
H4 C2 H7 109.257 H5 C3 H8 109.257
H5 C3 H9 109.257 H6 C2 H7 108.605
H8 C3 H9 108.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability