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Updated: Feb 2, 2026

Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand
Published on: September 8, 2016
Selective Encapsulation and Separation of Dihalobenzene Isomers with Discrete Heterometallic Macrocages
Hai-Ning Zhang1, Ye Lu1, Wen-Xi Gao1
1State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai, 200433, P.R. China.
Abstract:
A series of metallosupramolecular architectures have been prepared, including rectangles, prisms and cages, that feature half-sandwich rhodium(III) fragments at the vertices. Remarkably, a stable cage-like heteropolymetallic complex possessing eight rhodium(III) and two silver(I) metal ions (3) has been obtained following a multistep procedure. The RhIII /AgI mixed macrocage enables the separation of dihalogenated benzene derivatives with high selectivity. Furthermore, a detailed X-ray crystallographic study confirmed that the discriminative encapsulation of para-dihalobenzene (dichlorobenzene, dibromobenzene and diiodobenzene) is favored by Ag-π interactions and steric effects.
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