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

using model chemistry: B3LYP/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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-155.089864
Energy at 298.15K-155.096519
HF Energy-155.089864
Nuclear repulsion energy83.902128
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 B3LYP/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 3107 3003 24.52 107.68 0.28 0.44
2 A1 2969 2870 65.30 282.89 0.03 0.05
3 A1 1517 1466 2.31 9.48 0.74 0.85
4 A1 1490 1440 0.00 6.15 0.73 0.85
5 A1 1268 1226 5.79 1.29 0.56 0.72
6 A1 940 908 35.19 7.48 0.47 0.64
7 A1 411 397 2.47 0.70 0.07 0.13
8 A2 3005 2904 0.00 21.09 0.75 0.86
9 A2 1482 1433 0.00 20.21 0.75 0.86
10 A2 1163 1124 0.00 3.66 0.75 0.86
11 A2 208 201 0.00 0.26 0.75 0.86
12 B1 3000 2899 144.90 108.75 0.75 0.86
13 B1 1491 1441 11.62 0.01 0.75 0.86
14 B1 1194 1154 7.77 0.87 0.75 0.86
15 B1 242 234 5.54 0.01 0.75 0.86
16 B2 3105 3001 33.09 75.66 0.75 0.86
17 B2 2957 2858 56.23 2.50 0.75 0.86
18 B2 1498 1448 12.57 3.30 0.75 0.86
19 B2 1460 1411 4.03 3.24 0.75 0.86
20 B2 1194 1154 95.40 0.09 0.75 0.86
21 B2 1119 1081 50.06 3.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17408.5 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 16827.1 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 B3LYP/cc-pVTZ
ABC
1.31813 0.33332 0.29584

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.587
C2 0.000 1.173 -0.195
C3 0.000 -1.173 -0.195
H4 0.000 2.021 0.488
H5 0.000 -2.021 0.488
H6 0.890 1.232 -0.835
H7 -0.890 1.232 -0.835
H8 -0.890 -1.232 -0.835
H9 0.890 -1.232 -0.835

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.41001.41002.02322.02322.08132.08132.08132.0813
C21.41002.34641.08843.26621.09761.09762.64312.6431
C31.41002.34643.26621.08842.64312.64311.09761.0976
H42.02321.08843.26624.04161.77881.77883.62243.6224
H52.02323.26621.08844.04163.62243.62241.77881.7788
H62.08131.09762.64311.77883.62241.77943.03922.4639
H72.08131.09762.64311.77883.62241.77942.46393.0392
H82.08132.64311.09763.62241.77883.03922.46391.7794
H92.08132.64311.09763.62241.77882.46393.03921.7794

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 107.458 O1 C2 H6 111.592
O1 C2 H7 111.592 O1 C3 H5 107.458
O1 C3 H8 111.592 O1 C3 H9 111.592
C2 O1 C3 112.628 H4 C2 H6 108.918
H4 C2 H7 108.918 H5 C3 H8 108.918
H5 C3 H9 108.918 H6 C2 H7 108.301
H8 C3 H9 108.301
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.285      
2 C -0.073      
3 C -0.073      
4 H 0.103      
5 H 0.103      
6 H 0.056      
7 H 0.056      
8 H 0.056      
9 H 0.056      


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 -1.208 1.208
CHELPG        
AIM        
ESP 0.021 0.000 -1.258 1.258


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.375 0.000 0.000
y 0.000 -17.477 0.000
z 0.000 0.000 -21.304
Traceless
 xyz
x -0.984 0.000 0.000
y 0.000 3.362 0.000
z 0.000 0.000 -2.378
Polar
3z2-r2-4.756
x2-y2-2.898
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.298 0.000 0.000
y 0.000 5.395 0.000
z 0.000 0.000 4.278


<r2> (average value of r2) Å2
<r2> 52.716
(<r2>)1/2 7.261