NDLI: Bimodal supramolecular functionalization of carbon nanotubes triggered by covalent bond formation

Content Provider	Royal Society of Chemistry (RSC)
Author	Pérez, Emilio M. Leret, Sofía Casado, Santiago Rubio, Ángel Pouillon, Yann Navío, Cristina
Copyright Year	2017
Abstract	Many applications of carbon nanotubes require their chemical functionalization. Both covalent and supramolecular approaches have been extensively investigated. A less trodden path is the combination of both covalent and noncovalent chemistries, where the formation of covalent bonds triggers a particularly stable noncovalent interaction with the nanotubes. We describe a series of naphthalene diimide (NDI) bisalkene molecules that, upon mixing with single-walled carbon nanotubes (SWNTs) and Grubbs' catalyst, undergo two different reaction pathways. On one hand, they ring-close around the SWNTs to form rotaxane-like mechanically interlocked derivatives of SWNTs (MINTs). Alternatively, they oligomerize and then wrap around the SWNTs. The balance of MINTs to oligomer-wrapped SWNTs depends on the affinity of the NDI molecules for the SWNTs and the kinetics of the metathesis reactions, which can be controlled by varying the solvent. Thorough characterization of the products (TGA, TEM, AFM, Raman, UV-vis-NIR, PLE, XPS and UPS) confirms their structure and shows that each type of functionalization affects the electronic properties of the SWNTs differently.
Starting Page	1927
Ending Page	1935
Page Count	9
File Format	HTM / HTML PDF
ISSN	20416520
Volume Number	8
Issue Number	3
Journal	Chemical Science
DOI	10.1039/c6sc03894h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Subscribed
Subject Keyword	Carbon nanotube Ubiquitin NDI Naphthalene Transmission electron microscopy Covalent bond Raman Diazene Grubbs Grubbs' catalyst Olefin metathesis Solvent
Content Type	Text
Resource Type	Article
Subject	Chemistry

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