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

using model chemistry: CCSD=FULL/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 CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-154.800575
Energy at 298.15K-154.807294
HF Energy-154.126673
Nuclear repulsion energy84.512849
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 CCSD=FULL/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 3155 2991 19.51      
2 A1 3029 2872 59.19      
3 A1 1554 1473 2.02      
4 A1 1524 1445 0.00      
5 A1 1299 1232 7.54      
6 A1 989 938 33.09      
7 A1 424 402 2.45      
8 A2 3062 2903 0.00      
9 A2 1520 1441 0.00      
10 A2 1189 1127 0.00      
11 A2 210 199 0.00      
12 B1 3057 2899 121.99      
13 B1 1528 1449 11.58      
14 B1 1223 1159 8.82      
15 B1 254 241 5.45      
16 B2 3153 2989 34.70      
17 B2 3019 2862 42.57      
18 B2 1537 1457 11.39      
19 B2 1488 1411 5.01      
20 B2 1247 1182 119.94      
21 B2 1151 1091 19.28      

Unscaled Zero Point Vibrational Energy (zpe) 17805.3 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 16881.2 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 CCSD=FULL/cc-pVTZ
ABC
1.31001 0.34206 0.30197

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.591
C2 0.000 1.156 -0.195
C3 0.000 -1.156 -0.195
H4 0.000 2.009 0.474
H5 0.000 -2.009 0.474
H6 0.885 1.210 -0.834
H7 -0.885 1.210 -0.834
H8 -0.885 -1.210 -0.834
H9 0.885 -1.210 -0.834

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7 H8 H9
O11.39771.39772.01222.01222.06762.06762.06762.0676
C21.39772.31231.08383.23491.09291.09292.60552.6055
C31.39772.31233.23491.08382.60552.60551.09291.0929
H42.01221.08383.23494.01771.76981.76983.58503.5850
H52.01223.23491.08384.01773.58503.58501.76981.7698
H62.06761.09292.60551.76983.58501.77062.99802.4193
H72.06761.09292.60551.76983.58501.77062.41932.9980
H82.06762.60551.09293.58501.76982.99802.41931.7706
H92.06762.60551.09293.58501.76982.41932.99801.7706

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 107.697 O1 C2 H6 111.644
O1 C2 H7 111.644 O1 C3 H5 107.697
O1 C3 H8 111.644 O1 C3 H9 111.644
C2 O1 C3 111.620 H4 C2 H6 108.795
H4 C2 H7 108.795 H5 C3 H8 108.795
H5 C3 H9 108.795 H6 C2 H7 108.197
H8 C3 H9 108.197
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability