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

using model chemistry: BLYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-154.967036
Energy at 298.15K-154.973660
HF Energy-154.967036
Nuclear repulsion energy83.162696
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/6-31G(2df,p)
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 3032 3016 26.55 97.61 0.30 0.47
2 A1 2887 2871 61.70 204.36 0.03 0.05
3 A1 1484 1476 0.42 15.84 0.74 0.85
4 A1 1451 1443 0.00 14.62 0.73 0.84
5 A1 1234 1228 4.60 2.33 0.65 0.79
6 A1 903 898 28.65 7.48 0.36 0.53
7 A1 404 402 2.07 0.67 0.05 0.10
8 A2 2916 2900 0.00 19.37 0.75 0.86
9 A2 1439 1431 0.00 34.82 0.75 0.86
10 A2 1131 1125 0.00 6.39 0.75 0.86
11 A2 222 221 0.00 0.26 0.75 0.86
12 B1 2911 2895 151.81 95.37 0.75 0.86
13 B1 1448 1440 7.36 0.37 0.75 0.86
14 B1 1165 1159 6.55 2.67 0.75 0.86
15 B1 244 243 4.63 0.07 0.75 0.86
16 B2 3031 3014 34.59 71.90 0.75 0.86
17 B2 2871 2855 61.05 3.46 0.75 0.86
18 B2 1459 1451 11.82 3.59 0.75 0.86
19 B2 1423 1415 9.61 7.38 0.75 0.86
20 B2 1147 1140 65.85 0.35 0.75 0.86
21 B2 1082 1076 64.36 3.60 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 16941.5 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 16848.3 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/6-31G(2df,p)
ABC
1.28240 0.32928 0.29143

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.597
C2 0.000 1.179 -0.198
C3 0.000 -1.179 -0.198
H4 0.000 2.036 0.493
H5 0.000 -2.036 0.493
H6 0.898 1.242 -0.848
H7 -0.898 1.242 -0.848
H8 -0.898 -1.242 -0.848
H9 0.898 -1.242 -0.848

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.42191.42192.03832.03832.10592.10592.10592.1059
C21.42192.35861.09993.28821.11011.11012.66282.6628
C31.42192.35863.28821.09992.66282.66281.11011.1101
H42.03831.09993.28824.07131.79791.79793.65303.6530
H52.03833.28821.09994.07133.65303.65301.79791.7979
H62.10591.11012.66281.79793.65301.79523.06462.4838
H72.10591.11012.66281.79793.65301.79522.48383.0646
H82.10592.66281.11013.65301.79793.06462.48381.7952
H92.10592.66281.11013.65301.79792.48383.06461.7952

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 107.165 O1 C2 H6 111.961
O1 C2 H7 111.961 O1 C3 H5 107.165
O1 C3 H8 111.961 O1 C3 H9 111.961
C2 O1 C3 112.069 H4 C2 H6 108.881
H4 C2 H7 108.881 H5 C3 H8 108.881
H5 C3 H9 108.881 H6 C2 H7 107.920
H8 C3 H9 107.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.157      
2 C -0.211      
3 C -0.211      
4 H 0.112      
5 H 0.112      
6 H 0.089      
7 H 0.089      
8 H 0.089      
9 H 0.089      


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 -1.081 1.081
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.078 0.000 0.000
y 0.000 -17.503 0.000
z 0.000 0.000 -20.857
Traceless
 xyz
x -0.899 0.000 0.000
y 0.000 2.965 0.000
z 0.000 0.000 -2.066
Polar
3z2-r2-4.132
x2-y2-2.576
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.935 0.000 0.000
y 0.000 5.127 0.000
z 0.000 0.000 3.898


<r2> (average value of r2) Å2
<r2> 53.212
(<r2>)1/2 7.295