《Behavior, mechanism and equilibrium studies of Au(III) extraction with an ionic liquid [C4-6-C4BIm]Br2》 was written by Su, Hongmei; Wang, Qi; Wang, Ning; Yang, Yanzhao. Application In Synthesis of 1,6-Dibromohexane And the article was included in Dalton Transactions in 2020. The article conveys some information:
The first gemini-type benzimidazole ionic liquid ([C4-6-C4BIm]Br2) with two sites of action was synthesized and applied for gold extraction The effects of [C4-6-C4BIm]Br2 concentration, initial gold(III) concentration, acidity, and the loading capacity of [C4-6-C4BIm]Br2 were examined in detail. It was found that [C4-6-C4BIm]Br2 has excellent extraction ability for obtaining high purity gold. The anion exchange mechanism between [C4-6-C4BIm]Br2 and Au(III) was proved by Job’s method and 1H NMR and FTIR spectroscopy. Quantum chem. calculations were carried out to prove the mechanism theor. The extraction equilibrium process was modeled using Langmuir and Freundlich isotherms. Thermodn. parameters ΔH, ΔG and ΔS indicated that the extraction process was exothermic and spontaneous. The pseudo-second-order kinetic model well fitted the exptl. data (R = 0.99). In addition, [C4-6-C4BIm]Br2 has high selectivity for Au(III) compared to other base metals. In summary, [C4-6-C4BIm]Br2 has great application prospects in industry due to its excellent characteristics such as low cost, easy availability, and high extraction capacity. After reading the article, we found that the author used 1,6-Dibromohexane(cas: 629-03-8Application In Synthesis of 1,6-Dibromohexane)
1,6-Dibromohexane(cas: 629-03-8) is generally used to introduce C6 spacer in the molecular architecture. Some of the examples are: synthesis of pyrrolo-tetrathiafulvalene molecular bridge (6PTTF6) to study redox switching behavior of single molecules; synthesis of water-soluble thermoresponsive polylactides.Application In Synthesis of 1,6-Dibromohexane
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary