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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/cc-pVTZ
 hartrees
Energy at 0K-154.966053
Energy at 298.15K-154.972738
HF Energy-154.759106
Nuclear repulsion energy84.135168
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 B2PLYP=FULL/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 3144 3005 22.78 102.04 0.29 0.45
2 A1 3003 2871 62.77 277.90 0.03 0.05
3 A1 1535 1467 2.14 10.32 0.74 0.85
4 A1 1504 1437 0.01 4.53 0.74 0.85
5 A1 1279 1223 6.01 1.40 0.51 0.68
6 A1 953 911 34.51 7.96 0.43 0.60
7 A1 415 397 2.43 0.61 0.06 0.12
8 A2 3045 2910 0.00 18.07 0.75 0.86
9 A2 1500 1434 0.00 19.23 0.75 0.86
10 A2 1175 1123 0.00 3.36 0.75 0.86
11 A2 211 202 0.00 0.23 0.75 0.86
12 B1 3039 2905 134.83 103.45 0.75 0.86
13 B1 1509 1442 11.82 0.01 0.75 0.86
14 B1 1206 1153 8.06 0.89 0.75 0.86
15 B1 249 238 5.39 0.01 0.75 0.86
16 B2 3142 3003 31.71 71.24 0.75 0.86
17 B2 2993 2861 52.72 1.74 0.75 0.86
18 B2 1517 1450 11.98 2.77 0.75 0.86
19 B2 1471 1406 4.45 3.07 0.75 0.86
20 B2 1209 1155 100.11 0.20 0.75 0.86
21 B2 1130 1080 41.49 2.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17614.7 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 16836.2 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 B2PLYP=FULL/cc-pVTZ
ABC
1.30960 0.33723 0.29830

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.593
C2 0.000 1.166 -0.197
C3 0.000 -1.166 -0.197
H4 0.000 2.016 0.478
H5 0.000 -2.016 0.478
H6 0.887 1.218 -0.835
H7 -0.887 1.218 -0.835
H8 -0.887 -1.218 -0.835
H9 0.887 -1.218 -0.835

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40821.40822.01972.01972.07592.07592.07592.0759
C21.40822.33241.08543.25331.09451.09452.62282.6228
C31.40822.33243.25331.08542.62282.62281.09451.0945
H42.01971.08543.25334.03281.77481.77483.60173.6017
H52.01973.25331.08544.03283.60173.60171.77481.7748
H62.07591.09452.62281.77483.60171.77493.01382.4357
H72.07591.09452.62281.77483.60171.77492.43573.0138
H82.07592.62281.09453.60171.77483.01382.43571.7749
H92.07592.62281.09453.60171.77482.43573.01381.7749

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 107.477 O1 C2 H6 111.474
O1 C2 H7 111.474 O1 C3 H5 107.477
O1 C3 H8 111.474 O1 C3 H9 111.474
C2 O1 C3 111.820 H4 C2 H6 109.005
H4 C2 H7 109.005 H5 C3 H8 109.005
H5 C3 H9 109.005 H6 C2 H7 108.352
H8 C3 H9 108.352
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability