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

using model chemistry: PBE1PBE/aug-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 PBE1PBE/aug-cc-pVTZ
 hartrees
Energy at 0K-154.901637
Energy at 298.15K-154.908307
HF Energy-154.901637
Nuclear repulsion energy84.311535
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 PBE1PBE/aug-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 3132 3011 19.03 101.92 0.29 0.45
2 A1 2988 2873 62.09 334.50 0.02 0.03
3 A1 1507 1449 4.65 4.74 0.72 0.84
4 A1 1482 1424 0.06 3.11 0.72 0.83
5 A1 1269 1220 6.84 0.40 0.75 0.85
6 A1 974 936 36.39 7.31 0.33 0.50
7 A1 410 394 2.44 1.07 0.12 0.22
8 A2 3033 2917 0.00 19.40 0.75 0.86
9 A2 1476 1419 0.00 11.56 0.75 0.86
10 A2 1163 1118 0.00 1.48 0.75 0.86
11 A2 210 202 0.00 0.19 0.75 0.86
12 B1 3027 2910 120.57 103.09 0.75 0.86
13 B1 1485 1428 16.07 0.08 0.75 0.86
14 B1 1192 1146 6.66 0.00 0.75 0.86
15 B1 244 235 5.07 0.00 0.75 0.86
16 B2 3130 3010 27.89 65.52 0.75 0.86
17 B2 2977 2862 58.20 2.02 0.75 0.86
18 B2 1489 1432 13.35 1.49 0.75 0.86
19 B2 1452 1396 1.03 1.39 0.75 0.86
20 B2 1223 1176 126.32 0.84 0.75 0.86
21 B2 1132 1088 19.84 1.07 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17495.9 cm-1
Scaled (by 0.9615) Zero Point Vibrational Energy (zpe) 16822.3 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 PBE1PBE/aug-cc-pVTZ
ABC
1.31841 0.33877 0.30020

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-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 1.162 -0.194
C3 0.000 -1.162 -0.194
H4 0.000 2.016 0.483
H5 0.000 -2.016 0.483
H6 0.891 1.216 -0.835
H7 -0.891 1.216 -0.835
H8 -0.891 -1.216 -0.835
H9 0.891 -1.216 -0.835

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.40061.40062.01892.01892.07262.07262.07262.0726
C21.40062.32431.08963.24961.09871.09872.61882.6188
C31.40062.32433.24961.08962.61882.61881.09871.0987
H42.01891.08963.24964.03241.78071.78073.60213.6021
H52.01893.24961.08964.03243.60213.60211.78071.7807
H62.07261.09872.61881.78073.60211.78113.01392.4314
H72.07261.09872.61881.78073.60211.78112.43143.0139
H82.07262.61881.09873.60211.78073.01392.43141.7811
H92.07262.61881.09873.60211.78072.43143.01391.7811

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 107.686 O1 C2 H6 111.480
O1 C2 H7 111.480 O1 C3 H5 107.686
O1 C3 H8 111.480 O1 C3 H9 111.480
C2 O1 C3 112.150 H4 C2 H6 108.919
H4 C2 H7 108.919 H5 C3 H8 108.919
H5 C3 H9 108.919 H6 C2 H7 108.300
H8 C3 H9 108.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.400      
2 C -0.603      
3 C -0.603      
4 H 0.283      
5 H 0.283      
6 H 0.260      
7 H 0.260      
8 H 0.260      
9 H 0.260      


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 -1.227 1.227
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.205 0.000 0.000
y 0.000 -17.564 0.000
z 0.000 0.000 -21.369
Traceless
 xyz
x -0.738 0.000 0.000
y 0.000 3.223 0.000
z 0.000 0.000 -2.484
Polar
3z2-r2-4.968
x2-y2-2.641
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.634 0.000 0.000
y 0.000 5.741 0.000
z 0.000 0.000 4.713


<r2> (average value of r2) Å2
<r2> 52.204
(<r2>)1/2 7.225