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

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-154.912223
Energy at 298.15K-154.918902
HF Energy-154.912223
Nuclear repulsion energy84.339072
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 HSEh1PBE/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 3129 3007 22.97 103.34 0.30 0.47
2 A1 2984 2868 61.05 285.96 0.02 0.04
3 A1 1513 1454 3.29 9.12 0.74 0.85
4 A1 1486 1428 0.02 6.04 0.74 0.85
5 A1 1271 1222 6.41 1.03 0.54 0.70
6 A1 974 936 35.89 6.95 0.48 0.64
7 A1 413 397 2.44 0.60 0.05 0.10
8 A2 3028 2910 0.00 19.61 0.75 0.86
9 A2 1476 1419 0.00 19.52 0.75 0.86
10 A2 1165 1120 0.00 2.98 0.75 0.86
11 A2 212 203 0.00 0.25 0.75 0.86
12 B1 3022 2904 135.70 105.70 0.75 0.86
13 B1 1485 1427 14.29 0.01 0.75 0.86
14 B1 1196 1150 7.07 0.72 0.75 0.86
15 B1 246 237 5.28 0.01 0.75 0.86
16 B2 3128 3006 30.01 72.68 0.75 0.86
17 B2 2973 2857 56.14 1.67 0.75 0.86
18 B2 1493 1435 13.98 2.99 0.75 0.86
19 B2 1454 1398 2.09 3.08 0.75 0.86
20 B2 1222 1175 125.46 0.54 0.75 0.86
21 B2 1134 1090 20.32 2.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17501.5 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 16820.7 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 HSEh1PBE/cc-pVTZ
ABC
1.31828 0.33916 0.30044

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.588
C2 0.000 1.161 -0.194
C3 0.000 -1.161 -0.194
H4 0.000 2.016 0.481
H5 0.000 -2.016 0.481
H6 0.890 1.217 -0.836
H7 -0.890 1.217 -0.836
H8 -0.890 -1.217 -0.836
H9 0.890 -1.217 -0.836

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.39971.39972.01892.01892.07362.07362.07362.0736
C21.39972.32211.08943.24811.09881.09882.61872.6187
C31.39972.32213.24811.08942.61872.61871.09881.0988
H42.01891.08943.24814.03221.77951.77953.60253.6025
H52.01893.24811.08944.03223.60253.60251.77951.7795
H62.07361.09882.61871.77953.60251.77943.01442.4332
H72.07361.09882.61871.77953.60251.77942.43323.0144
H82.07362.61871.09883.60251.77953.01442.43321.7794
H92.07362.61871.09883.60251.77952.43323.01441.7794

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 107.755 O1 C2 H6 111.623
O1 C2 H7 111.623 O1 C3 H5 107.755
O1 C3 H8 111.623 O1 C3 H9 111.623
C2 O1 C3 112.093 H4 C2 H6 108.821
H4 C2 H7 108.821 H5 C3 H8 108.821
H5 C3 H9 108.821 H6 C2 H7 108.132
H8 C3 H9 108.132
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.259      
2 C -0.083      
3 C -0.083      
4 H 0.103      
5 H 0.103      
6 H 0.055      
7 H 0.055      
8 H 0.055      
9 H 0.055      


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 -1.184 1.184
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.209 0.000 0.000
y 0.000 -17.363 0.000
z 0.000 0.000 -21.133
Traceless
 xyz
x -0.962 0.000 0.000
y 0.000 3.308 0.000
z 0.000 0.000 -2.347
Polar
3z2-r2-4.693
x2-y2-2.847
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.276 0.000 0.000
y 0.000 5.330 0.000
z 0.000 0.000 4.246


<r2> (average value of r2) Å2
<r2> 52.091
(<r2>)1/2 7.217