期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 61, 期 35, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202208189
关键词
Carbon Nanotubes; Mechanically-Interlocked Molecules; Rotaxanes; Supramolecular Chemistry; Supramolecular Coordination Complexes
资金
- Ministry of Science of Spain [CTQ2017-86060-P, PID2020-116661RB-I00]
- Comunidad de Madrid [P2018/NMT-4367]
- Severo Ochoa Programme for Centres of Excellence in RD (MINECO) [CEX2020-001039-S]
Mechanically interlocked derivatives of carbon nanotubes (MINTs) are interesting and stable nanotube products. This study explores the encapsulation of single-walled carbon nanotubes within a palladium-based metallosquare, revealing the sensitivity of MINT formation to structural variations of the metallo-assemblies. The study also demonstrates the potential application expansion of MINTs through supramolecular coordination complexes.
Mechanically interlocked derivatives of carbon nanotubes (MINTs) are interesting nanotube products since they show high stability without altering the carbon nanotube structure. So far, MINTs have been synthesized using ring-closing metathesis, disulfide exchange reaction, H-bonding or direct threading with macrocycles. Here, we describe the encapsulation of single-walled carbon nanotubes within a palladium-based metallosquare. The formation of MINTs was confirmed by a variety of techniques, including high-resolution transmission electron microscopy. We find the making of these MINTs is remarkably sensitive to structural variations of the metallo-assemblies. When a metallosquare with a cavity of appropriate shape and size is used, the formation of the MINT proceeds successfully by both templated clipping and direct threading. Our studies also show indications on how supramolecular coordination complexes can help expand the potential applications of MINTs.
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