π‐Stacking Enhanced Dynamic and Redox‐Switchable Self‐Assembly of Donor–Acceptor Metallo‐[2]Catenanes from Diimide Derivatives and Crown Ethers | Zendy

Koshkakaryan Gayane | Zendy; Parimal Kumar | Zendy; He Jiuming | Zendy; Zhang Xiyun | Zendy; Abliz Zeper | Zendy; Flood Amar H. | Zendy; Liu Yi | Zendy

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π‐Stacking Enhanced Dynamic and Redox‐Switchable Self‐Assembly of Donor–Acceptor Metallo‐[2]Catenanes from Diimide Derivatives and Crown Ethers

Author(s) -

Koshkakaryan Gayane,

Parimal Kumar,

He Jiuming,

Zhang Xiyun,

Abliz Zeper,

Flood Amar H.,

Liu Yi

Publication year - 2008

Publication title -

chemistry – a european journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.687

H-Index - 242

eISSN - 1521-3765

pISSN - 0947-6539

DOI - 10.1002/chem.200801590

Subject(s) - catenane , diimide , ligand (biochemistry) , stacking , acceptor , chemistry , self assembly , bipyridine , polymer chemistry , materials science , combinatorial chemistry , crystallography , organic chemistry , molecule , crystal structure , perylene , biochemistry , physics , receptor , condensed matter physics

In search of a better recipe : Bigger is better. On changing from strong donor–acceptor pairs to very weak ones, divalent 4,4′‐bipyridine was no longer a suitable filler ligand to give cyclized metal–ligand coordination [2]catenanes. The choice of 2,7‐diazapyrene, which has a larger π surface, proved to be essential in providing extra stabilization interactions to ensure efficient assembly (see figure).

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