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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/cc-pVDZ
 hartrees
Energy at 0K-154.863195
Energy at 298.15K-154.869895
HF Energy-154.703904
Nuclear repulsion energy83.799206
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-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 3157 3026 25.69 104.42 0.34 0.51
2 A1 2999 2875 59.43 252.57 0.03 0.06
3 A1 1513 1450 0.66 14.07 0.74 0.85
4 A1 1485 1423 0.32 13.70 0.75 0.86
5 A1 1270 1218 7.41 1.53 0.50 0.67
6 A1 966 926 34.94 8.24 0.46 0.63
7 A1 418 401 2.34 0.52 0.04 0.07
8 A2 3049 2922 0.00 18.24 0.75 0.86
9 A2 1471 1410 0.00 32.66 0.75 0.86
10 A2 1161 1113 0.00 4.32 0.75 0.86
11 A2 217 208 0.00 0.27 0.75 0.86
12 B1 3043 2917 155.34 114.85 0.75 0.86
13 B1 1479 1418 10.62 0.18 0.75 0.86
14 B1 1194 1144 8.46 1.93 0.75 0.86
15 B1 259 248 5.56 0.04 0.75 0.86
16 B2 3156 3025 32.42 84.12 0.75 0.86
17 B2 2985 2862 58.18 1.57 0.75 0.86
18 B2 1489 1427 14.94 3.68 0.75 0.86
19 B2 1453 1393 10.59 6.50 0.75 0.86
20 B2 1215 1164 121.15 0.27 0.75 0.86
21 B2 1131 1084 22.79 3.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17554.1 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 16825.6 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 B2PLYP=FULL/cc-pVDZ
ABC
1.29103 0.33636 0.29730

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.595
C2 0.000 1.165 -0.196
C3 0.000 -1.165 -0.196
H4 0.000 2.027 0.485
H5 0.000 -2.027 0.485
H6 0.896 1.222 -0.845
H7 -0.896 1.222 -0.845
H8 -0.896 -1.222 -0.845
H9 0.896 -1.222 -0.845

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40851.40852.02972.02972.09082.09082.09082.0908
C21.40852.33031.09813.26361.10801.10802.63122.6312
C31.40852.33033.26361.09812.63122.63121.10801.1080
H42.02971.09813.26364.05341.79421.79423.62313.6231
H52.02973.26361.09814.05343.62313.62311.79421.7942
H62.09081.10802.63121.79423.62311.79213.03082.4443
H72.09081.10802.63121.79423.62311.79212.44433.0308
H82.09082.63121.10803.62311.79423.03082.44431.7921
H92.09082.63121.10803.62311.79422.44433.03081.7921

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 107.498 O1 C2 H6 111.824
O1 C2 H7 111.824 O1 C3 H5 107.498
O1 C3 H8 111.824 O1 C3 H9 111.824
C2 O1 C3 111.632 H4 C2 H6 108.840
H4 C2 H7 108.840 H5 C3 H8 108.840
H5 C3 H9 108.840 H6 C2 H7 107.945
H8 C3 H9 107.945
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability