In database:

600-6500 cm-1

6.2-248 nm

Dimethyl ether ((CH₃)₂O)
Molecular weight 46.0688 amu
Freezing point -141 C
Boiling point 24.5 C

Infrared cross-sections from PNNL
FTIR infrared cross-sections from 600 to 6500 cm^-1
Data available at 5 C, 25 C, and 50 C
Spectra is composite of on the order of 10 different pressures,backfilled with nitrogen to 760 T.
Images of PNNL data in cm²/molecule vs. wavenumbers
Images of PNNL data in cm²/molecule vs. microns

UV cross-sections
Please see The MPI-Mainz UV/VIS Spectral Atlas

Additional references
High-Resolution Analysis of the n₆, n₁₇, and n₂₁ Bands of Dimethyl Ether; L.H. Coudert, P. Carcabal, M. Chevalier, M. Broquier, M. Hepp, and M. Herman; J.Mol.Spec. 212:203-207 (2002).
Figures 2 and 3 showing 934-944 and 1105-1115 cm^-1.

Notes
Fundamental frequencies from NIST Chemistry Webbook / Coudert et al.
(b₁ and b₂ switched between 2 references.)
n₁ 2996 cm^-1 (a₁) CH₃ d-stretch / 2993 cm^-1 (a₁) CH sym-stretch
n₂ 2817 cm^-1 (a₁) CH₃ s-stretch / 2822 cm^-1 (a₁) CH₂ sym-stretch
n₃ 1464 cm^-1 (a₁) CH₃ d-deform / 1470 cm^-1 (a₁) HCH₂ sym-bend
n₄ 1452 cm^-1 (a₁) CH₃ s-deform / 1454 cm^-1 (a₁) HCH sym-bend
n₅ 1244 cm^-1 (a₁) CH₃ rock / 1250 cm^-1 (a₁) CH₃ rock
n₆ 928 cm^-1 (a₁) CO s-stretch / 933.906 cm^-1 (a₁) CO sym-stretch
n₇ 418 cm^-1 (a₁) COC deform / 424 cm^-1 (a₁) COC bend
n₈ 2952 cm^-1 (a₂) CH₃ d-stretch / 2893 cm^-1 (a₂) CH₂ asym-stretch
n₉ 1464 cm^-1 (a₂) CH₃ d-deform / 1444 cm^-1 (a₂) HCH asym-bend
n₁₀ 1150 cm^-1 (a₂) CH₃ rock / 1150 cm^-1 (a₂) CH₃ rock
n₁₁ 203 cm^-1 (a₂) torsion / 198 cm^-1 (a₂) torsion
n₁₂ 2996 cm^-1 (b₁) CH₃ d-stretch / 2989 cm^-1 (b₁) CH₂ asym-stretch
n₁₃ 2817 cm^-1 (b₁) CH₃ s-stretch / 1462 cm^-1 (b₁) HCH sym-bend
n₁₄ 1464 cm^-1 (b₁) CH₃ d-deform / 1181 cm^-1 (b₁) CH₃ rock
n₁₅ 1452 cm^-1 (b₁) CH₃ s-deform / 242 cm^-1 (b₁) torsion
n₁₆ 1227 cm^-1 (b₁) CH₃ rock / 2991 cm^-1 (b₂) CH asym-stretch
n₁₇ 1102 cm^-1 (b₁) CO a-stretch / 2817.385 cm^-1 (b₂) CH₂ sym-stretch
n₁₈ 2925 cm^-1 (b₂) CH₃ d-stretch / 1456 cm^-1 (b₂) HCH asym-bend
n₁₉ 1464 cm^-1 (b₂) CH₃ d-deform / 1449 cm^-1 (b₂) HCH asym-bend
n₂₀ 1179 cm^-1 (b₂) CH₃ rock / 1165 cm^-1 (b₂) CH₃ rock
n₂₁ 242 cm^-1 (b₂) torsion / 1103.951 cm^-1 (b₂) CO asym-stretch



List of available data for all molecules in database
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