Computed Properties of C5H10Br2. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 1,5-Dibromopentane, is researched, Molecular C5H10Br2, CAS is 111-24-0, about Study of the interaction between ninhydrin and chromium(III)-amino acid in an aqueous-micellar system: Influence of gemini surfactant micelles. Author is Kumar, Dileep; Abdul Rub, Malik.
Chromium(III)-amino acid ([Cr(III)-His]2+) and ninhydrin in an aqueous-micellar system were combined in acetate buffer at 353 K and analyzed by UV-vis spectroscopy. Dimeric geminis (16-s-16, s, spacer, = 4 to 6) were chosen as a surfactant and their influence on the reaction rate was determined To show this behavior of gemini surfactants on rate constant (kψ), kψ was plotted against different surfactant concentrations kψ increases with increasing [16-s-16] (at concentrations lesser than their cmc values, segment I) and leveling-off regions attain (concentration upto 400 × 10-5 mol dm-3, segment II). Later, [16-s-16] generates a third region of increasing kψ at higher [16-s-16] ([16-s-16] > 400 × 10-5 mol dm-3, segment III). The uncommon plot behavior of kψ vs. [16-s-16] was revealed, effectively, by utilizing a pseudo-phase model of micellar activity. Critical micellar concentration of pure gemini surfactants, as well as their mixed solution with reactants, was determined by conductometry. Based on the data, various thermodn. parameters and binding constants were calculated under different exptl. reaction conditions.
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Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis—I. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis