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

using model chemistry: HSEh1PBE/3-21G

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/3-21G
 hartrees
Energy at 0K-154.002599
Energy at 298.15K-154.009309
HF Energy-154.002599
Nuclear repulsion energy82.616223
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/3-21G
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 3156 3040 24.38 85.81 0.35 0.51
2 A1 3007 2897 43.59 188.60 0.03 0.07
3 A1 1589 1531 1.46 32.57 0.75 0.86
4 A1 1528 1472 0.76 12.69 0.69 0.82
5 A1 1253 1207 0.03 4.96 0.68 0.81
6 A1 913 879 20.80 11.26 0.34 0.51
7 A1 406 391 4.16 0.55 0.05 0.10
8 A2 3048 2936 0.00 15.68 0.75 0.86
9 A2 1546 1489 0.00 51.77 0.75 0.86
10 A2 1156 1114 0.00 11.22 0.75 0.86
11 A2 250 241 0.00 0.24 0.75 0.86
12 B1 3046 2934 139.46 89.94 0.75 0.86
13 B1 1554 1497 19.22 0.97 0.75 0.86
14 B1 1189 1145 1.48 4.40 0.75 0.86
15 B1 251 242 8.46 0.04 0.75 0.86
16 B2 3153 3038 22.75 71.43 0.75 0.86
17 B2 2996 2886 44.07 2.00 0.75 0.86
18 B2 1569 1511 18.11 5.10 0.75 0.86
19 B2 1486 1431 4.09 11.07 0.75 0.86
20 B2 1169 1127 60.30 0.44 0.75 0.86
21 B2 1106 1065 33.62 5.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17685.5 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 17036.5 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/3-21G
ABC
1.24738 0.32600 0.28661

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.614
C2 0.000 1.188 -0.206
C3 0.000 -1.188 -0.206
H4 0.000 2.038 0.480
H5 0.000 -2.038 0.480
H6 0.891 1.245 -0.851
H7 -0.891 1.245 -0.851
H8 -0.891 -1.245 -0.851
H9 0.891 -1.245 -0.851

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.44401.44402.04272.04272.11902.11902.11902.1190
C21.44402.37661.09223.29861.10151.10152.67012.6701
C31.44402.37663.29861.09222.67012.67011.10151.1015
H42.04271.09223.29864.07651.78731.78733.65273.6527
H52.04273.29861.09224.07653.65273.65271.78731.7873
H62.11901.10152.67011.78733.65271.78293.06202.4894
H72.11901.10152.67011.78733.65271.78292.48943.0620
H82.11902.67011.10153.65271.78733.06202.48941.7829
H92.11902.67011.10153.65271.78732.48943.06201.7829

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 106.472 O1 C2 H6 112.001
O1 C2 H7 112.001 O1 C3 H5 106.472
O1 C3 H8 112.001 O1 C3 H9 112.001
C2 O1 C3 110.752 H4 C2 H6 109.124
H4 C2 H7 109.124 H5 C3 H8 109.124
H5 C3 H9 109.124 H6 C2 H7 108.058
H8 C3 H9 108.058
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.489      
2 C -0.369      
3 C -0.369      
4 H 0.229      
5 H 0.229      
6 H 0.192      
7 H 0.192      
8 H 0.192      
9 H 0.192      


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 -1.580 1.580
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.102 0.000 0.000
y 0.000 -16.402 0.000
z 0.000 0.000 -21.001
Traceless
 xyz
x -1.401 0.000 0.000
y 0.000 4.150 0.000
z 0.000 0.000 -2.749
Polar
3z2-r2-5.497
x2-y2-3.700
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.295 0.000 0.000
y 0.000 4.389 0.000
z 0.000 0.000 3.300


<r2> (average value of r2) Å2
<r2> 53.485
(<r2>)1/2 7.313