Langton MJ, Blackburn OA, Lang T, Faulkner S, Beer PD. Nitrite-templated synthesis of lanthanide-containing [2]rotaxanes for anion sensing.
Angew Chem Int Ed Engl 2014;
53:11463-6. [PMID:
24989322 PMCID:
PMC4497609 DOI:
10.1002/anie.201405131]
[Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Indexed: 11/16/2022]
Abstract
The first anion-templated synthesis of a lanthanide-containing interlocked molecule is demonstrated by utilizing a nitrite anion to template initial pseudorotaxane formation. Subsequent stoppering of the interpenetrated assembly allows for the preparation of a lanthanide-functionalized [2]rotaxane in high yield. Following removal of the nitrite anion template, the europium [2]rotaxane host is demonstrated to recognize and sense fluoride selectively.
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