Sentence examples for olefinic group from inspiring English sources

Its IR absorption at 3442, 1716, and 1632 cm−1 showed the presence of hydroxyl group, carbonyl group, and olefinic group.

The 1H, 13C NMR and DEPT spectra revealed the presence of one methyl group, two methylenes, five methines including three olefinic methines, three quarternary carbons (two carbonyls, one olefinic group) (Table 1).

A benzophenone unit is attached close to the first fumaramide station to enable selective photosensitized isomerization of this olefinic group through energy transfer using a higher wavelength than required for nonsensitized isomerization.

Of particular interest is the appearance in the IR spectrum acquired at 24 h, of a component around 3,010 cm-1 that is due to the olefinic group =CH: this indicates the presence of unsaturated fatty acids, which is instead negligible in S. cerevisiae control spectrum (see Figure  3).

This review discusses the up-to-date mechanistic landscape of non-heme iron and manganese catalyzed oxidations of olefinic groups and aliphatic CH groups with H2O2.

This stifled the co-adsorption of the weakly held olefinic groups during nitrile hydrogenation and enhanced their steric hindrance caused by their internal position along the fatty chain to give higher unsaturated primary fatty amine yields.

At high levels of nitrile conversion the surface is not saturated and this allows the olefinic groups to adsorb and hydrogenate as the batch process comes to an end.

β-Cleavage of secondary radicals yields end chain olefinic groups and primary radicals.

Platinum-catalyzed hydroalkoxylation tolerated a number of functional groups including pivaloate and acetate esters, amides, silyl and benzyl ethers, and pendant hydroxyl and olefinic groups.

The presence of hydroxyl groups (3434 cm−1), carbonyl groups (1719 and 1686 cm−1), and olefinic groups (1637 cm−1) were clearly shown in the IR spectrum of 1.

The strong peak at 1450 cm−1, which appears solely in the untreated sample corresponds to olefinic groups within the biochar sample (Wu et al. 2009).