期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 145, 期 36, 页码 19458-19477出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.3c06991
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This article introduces the research on the use of antimony compounds as new platforms for anion capture, sensing, and transport, emphasizing the excellent Lewis acidic properties of antimony and its potential in supramolecular chemistry and catalysis. It also mentions the recent advances in anion sensing in aqueous media and anion binding catalysis and anion transport across phospholipid membranes.
Motivated by the discovery of main group Lewis acids that could compete or possibly outperform the ubiquitous organoboranes, several groups, including ours, have engaged in the chemistry of Lewis acidic organoantimony compounds as new platforms for anion capture, sensing, and transport. Principal to this approach are the intrinsically elevated Lewis acidic properties of antimony, which greatly favor the addition of halide anions to this group 15 element. The introduction of organic substituents to the antimony center and its oxidation from the + III to the + V state provide for tunable Lewis acidity and a breadth of applications in supramolecular chemistry and catalysis. The performances of these antimony-based Lewis acids in the domain of anion sensing in aqueous media illustrate the favorable attributes of antimony as a central element. At the same time, recent advances in anion binding catalysis and anion transport across phospholipid membranes speak to the numerous opportunities that lie ahead in the chemistry of these unique main group compounds.
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