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Cover Picture: Highly Stable Molecular Borromean Rings (Chin. J. Chem. 2/2018)
Author(s) -
Lu Ye,
Lin Yuejian,
Li Zhenhua,
Jin Guoxin
Publication year - 2018
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201880021
Subject(s) - chemistry , chin , monomer , linker , cover (algebra) , crystallography , ligand (biochemistry) , stability (learning theory) , stereochemistry , polymer chemistry , organic chemistry , receptor , polymer , biochemistry , machine learning , computer science , operating system , medicine , mechanical engineering , engineering , anatomy
The cover picture shows a series of Cp*Rh‐based molecular Borromean rings (BRs), which consist of three chemically independent rings that are locked in such a way that no two of the three rings are linked with each other. Interestingly, the structure of BRs is very similar to Kong Ming Lock (孔明锁), a kind of Chinese traditional six‐piece burr puzzle. In this work, some of as‐synthesized BRs display high stability in solution. The reason is related to the length ratio of the long‐arm linker and short‐arm linker, where smaller aspect ratios of the metallarectangles promote improved stability of the BRs in solution. Increasing the width of the metallaligand or pyridyl ligand hinders the formation of BRs and leads to unoccupied monomeric rectangles, which were further used as catalysts. More details are discussed in the article by Jin et al. on page 106–111.