Influence of the alkyl side chain length on the thermophysical properties of chiral ionic liquids with a (1R,2S,5R)-(-)-menthol substituent and data analysis by means of mathematical gnostics was written by Andresova, Adela;Bendova, Magdalena;Schwarz, Jaroslav;Wagner, Zdenek;Feder-Kubis, Joanna. And the article was included in Journal of Molecular Liquids in 2017.Quality Control of 1-Octyl-1H-imidazole This article mentions the following:
A comprehensive physico-chem. characterization of the chiral ionic liquids of a 3-alkyl-1-[(1R,2S,5R)-(-)-menthoxymethyl]imidazolium bis(trifluoromethylsulfonyl)imides homologous series with a linear alkyl substituent ranging from the Me up to the dodecyl group was carried out exptl. to investigate the way in which the measured thermophys. properties were influenced by the alkyl chain length on the cation. Refractive index, d., speed of sound, and isobaric heat capacity were measured as a function of temperature at atm. pressure and analyzed by methods based on math. gnostics. A robust linear regression along a gnostic influence function was used to optimize parameters of the relationships used in this work and to estimate the changing nanosegregation in the studied ionic liquid series by finding the Critical Alkyl Length Size (CALS) from heat capacity data. In addition, we propose the use of the marginal anal. to assess the quality of the measured data as an alternative to the estimate of the measurement uncertainty. In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7Quality Control of 1-Octyl-1H-imidazole).
1-Octyl-1H-imidazole (cas: 21252-69-7) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Imidazole is incorporated into many important biological compounds. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Histidine is present in many proteins and enzymes, e.g. by binding metal cofactors, as seen in hemoglobin.Quality Control of 1-Octyl-1H-imidazole
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem