Adaptive Self‐Assembly and Induced‐Fit Interconversions between Molecular Borromean Rings, Russian Dolls and Ring‐in‐Ring Complexes †

Author(s):  
Ye Lu ◽  
Dong Liu ◽  
Zheng Cui ◽  
Yue‐Jian Lin ◽  
Guo‐Xin Jin
2020 ◽  
Vol 7 (10) ◽  
pp. 1548-1556 ◽  
Author(s):  
Ye Lu ◽  
Dong Liu ◽  
Yue-Jian Lin ◽  
Zhen-Hua Li ◽  
Guo-Xin Jin

Abstract Despite extensive research and several stunning breakthroughs in the synthesis of interlocked molecular species, [3]catenanes, Borromean rings and ring-in-ring complexes are exceedingly rare and their targeted synthesis remains a formidable challenge. Herein, a series of Cp*Rh-based homogeneous and heterogeneous interlocked structures have been prepared by coordination-driven self-assembly, not only including metalla[2]catenanes and molecular Borromean rings, but also linear metalla[3]catenanes and ring-in-ring complexes. The interlocked structures are all based on bithiophenyl groups. The bithiophenyl groups effectively enhance the strength of the inter-ring interactions and play a crucial role in the formation of these interlocked structures. By taking advantage of the strong interaction between π-donor (D) and π-acceptor (A) groups, the electron-deficient methylviologen cation was introduced into a cationic metallarectangle based on bithiophenyl groups. Taking inspiration from these results, a cationic metallarectangle based on A units was threaded into a metallarectangle based on D units, leading to a heterogeneous D–A ring-in-ring structure.


2016 ◽  
Vol 138 (27) ◽  
pp. 8368-8371 ◽  
Author(s):  
Taegeun Kim ◽  
Nem Singh ◽  
Jihun Oh ◽  
Eun-Hee Kim ◽  
Jaehoon Jung ◽  
...  

2012 ◽  
Vol 112 (6) ◽  
pp. 063510 ◽  
Author(s):  
T. Noda ◽  
T. Mano ◽  
M. Jo ◽  
T. Kawazu ◽  
H. Sakaki

2011 ◽  
Vol 50 (12) ◽  
pp. 2850-2853 ◽  
Author(s):  
Markus Albrecht ◽  
Elisabeth Isaak ◽  
Miriam Baumert ◽  
Verena Gossen ◽  
Gerhard Raabe ◽  
...  

2019 ◽  
Vol 53 (3) ◽  
Author(s):  
Ross S. Forgan ◽  
Jason M. Spruell ◽  
John-Carl Olsen ◽  
Charlotte L. Stern ◽  
J. Fraser Stoddart

The assembly of molecular Borromean Rings from constitutionally independent rings in a stepwise manner depends on the preparation of robust “ring-in-ring” complexes. The π-electron rich macrocycle bis-1,5-dinaphtho[50]crown-14 (1) is shown to form a donor-acceptor ring-in-ring complex with the π-electron poor cyclophane cyclobis(paraquat-4,4'-biphenylene) (24+) in solution. In the crystal superstructure of [1⊂2]·4PF6, CH···O interactions between the polyether loops of 1 and the bipyridinium units of 24+ could disfavor the threading of dialkylammonium components of a third ring.    


1997 ◽  
Vol 7 (3) ◽  
pp. 305-309 ◽  
Author(s):  
Eric Westhof ◽  
Dinshaw J Patel

2006 ◽  
Vol 45 (19) ◽  
pp. 3123-3126 ◽  
Author(s):  
Stéphane Le Gac ◽  
Jérôme Marrot ◽  
Olivia Reinaud ◽  
Ivan Jabin
Keyword(s):  

2017 ◽  
Vol 8 (1) ◽  
Author(s):  
Ting Zhang ◽  
Li-Peng Zhou ◽  
Xiao-Qing Guo ◽  
Li-Xuan Cai ◽  
Qing-Fu Sun

2017 ◽  
Vol 46 (2) ◽  
pp. 571-577 ◽  
Author(s):  
Nem Singh ◽  
Dongwook Kim ◽  
Dong Hwan Kim ◽  
Eun-Hee Kim ◽  
Hyunuk Kim ◽  
...  

Unprecedented iridium(iii) derived molecular Borromean rings, 2[catenane] and ring-in-ring metallacycles were synthesizedviacoordination driven self-assembly using an iridium(iii)-based acceptor and dipyridyl donors.


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