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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-152.946473
Energy at 298.15K-152.952965
HF Energy-152.946473
Nuclear repulsion energy80.725134
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 BLYP/STO-3G
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 3323 3074 7.55 37.60 0.55 0.71
2 A1 3106 2873 14.10 90.81 0.01 0.02
3 A1 1634 1512 0.68 26.52 0.75 0.86
4 A1 1558 1442 0.25 6.91 0.71 0.83
5 A1 1283 1187 0.14 3.89 0.68 0.81
6 A1 916 848 3.00 6.91 0.30 0.46
7 A1 440 407 0.88 0.88 0.17 0.29
8 A2 3233 2992 0.00 10.78 0.75 0.86
9 A2 1602 1482 0.00 32.35 0.75 0.86
10 A2 1129 1045 0.00 6.16 0.75 0.86
11 A2 235 217 0.00 0.06 0.75 0.86
12 B1 3228 2987 45.29 45.14 0.75 0.86
13 B1 1601 1481 6.56 2.57 0.75 0.86
14 B1 1146 1060 2.21 3.03 0.75 0.86
15 B1 258 239 2.92 0.01 0.75 0.86
16 B2 3320 3071 0.39 34.92 0.75 0.86
17 B2 3101 2869 30.27 0.19 0.75 0.86
18 B2 1628 1506 8.95 0.61 0.75 0.86
19 B2 1518 1405 18.75 7.58 0.75 0.86
20 B2 1138 1053 16.72 0.00 0.75 0.86
21 B2 1113 1030 5.49 4.23 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18254.7 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 16889.3 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 BLYP/STO-3G
ABC
1.11998 0.32106 0.27670

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.667
C2 0.000 1.194 -0.225
C3 0.000 -1.194 -0.225
H4 0.000 2.084 0.446
H5 0.000 -2.084 0.446
H6 0.907 1.240 -0.883
H7 -0.907 1.240 -0.883
H8 -0.907 -1.240 -0.883
H9 0.907 -1.240 -0.883

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.49091.49092.09562.09562.18262.18262.18262.1826
C21.49092.38891.11423.34641.12171.12172.67972.6797
C31.49092.38893.34641.11422.67972.67971.12171.1217
H42.09561.11423.34644.16791.81751.81753.69273.6927
H52.09563.34641.11424.16793.69273.69271.81751.8175
H62.18261.12172.67971.81753.69271.81403.07202.4792
H72.18261.12172.67971.81753.69271.81402.47923.0720
H82.18262.67971.12173.69271.81753.07202.47921.8140
H92.18262.67971.12173.69271.81752.47923.07201.8140

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 106.207 O1 C2 H6 112.552
O1 C2 H7 112.552 O1 C3 H5 106.207
O1 C3 H8 112.552 O1 C3 H9 112.552
C2 O1 C3 106.482 H4 C2 H6 108.749
H4 C2 H7 108.749 H5 C3 H8 108.749
H5 C3 H9 108.749 H6 C2 H7 107.917
H8 C3 H9 107.917
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.164      
2 C -0.129      
3 C -0.129      
4 H 0.079      
5 H 0.079      
6 H 0.066      
7 H 0.066      
8 H 0.066      
9 H 0.066      


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 -1.109 1.109
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.496 0.000 0.000
y 0.000 -16.683 0.000
z 0.000 0.000 -19.138
Traceless
 xyz
x -0.585 0.000 0.000
y 0.000 2.134 0.000
z 0.000 0.000 -1.549
Polar
3z2-r2-3.097
x2-y2-1.813
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.726 0.000 0.000
y 0.000 2.983 0.000
z 0.000 0.000 1.911


<r2> (average value of r2) Å2
<r2> 54.240
(<r2>)1/2 7.365