Molecular Borromean Rings Based on Dihalogenated Ligands
2017; Elsevier BV; Volume: 3; Issue: 1 Linguagem: Inglês
10.1016/j.chempr.2017.06.006
ISSN2451-9308
AutoresYe Lu, Yuxin Deng, Yue‐Jian Lin, Ying‐Feng Han, Linhong Weng, Zhen Hua Li, Guo‐Xin Jin,
Tópico(s)Molecular Sensors and Ion Detection
ResumoA series of Cp*Rh- and Cp*Ir-based molecular Borromean rings (BRs) have been prepared with dihalogenated ligands (fluoranilic acid, chloranilic acid, and bromianilic acid) and 4,4′-bipyridylacetylene. The halogen atoms play a crucial role in forming BRs. The strength of the interaction among the rings for different BRs is not the same and can be adjusted by changes in the halogen atoms on the precursor. We took advantage of this dissimilarity in the interactions to realize selective reversible conversion between BRs and a monomeric rectangle by the use of different p-dihalobenzenes. Subsequently, a stepwise separation method for p-dichlorobenzene, p-dibromobenzene, and p-diiodobenzene at ambient temperature was developed. The BRs used in the separation are recoverable and recyclable.
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