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  The mechanical bond on carbon nanotubes: diameter-selective functionalization and effects on physical properties

Martínez-Periñán, E., de Juan, A., Pouillon, Y., Schierl, C., Strauss, V., Martín, N., et al. (2016). The mechanical bond on carbon nanotubes: diameter-selective functionalization and effects on physical properties. Nanoscale, 8(17), 9254-9264. doi:10.1039/c6nr01182a.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-555F-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-E499-E
Genre: Journal Article

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https://dx.doi.org/10.1039/c6nr01182a (Publisher version)
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 Creators:
Martínez-Periñán, E.1, Author
de Juan, A.2, Author
Pouillon, Y.3, Author
Schierl, C.4, Author
Strauss, V.4, Author
Martín, N.2, 5, Author
Rubio, A.3, 6, Author              
Guldi, D. M.4, Author
Lorenzo, E.1, 2, Author
Pérez, E.2, Author
Affiliations:
1Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Universidad Autónoma de Madrid, ou_persistent22              
2IMDEA Nanoscience, C/Faraday 9, Ciudad Universitaria de Cantoblanco, ou_persistent22              
3Centro Joxe Mari Korta, ou_persistent22              
4Friedrich-Alexander-Universität Erlangen/Nürnberg, Department Chemie und Pharmazie, Lehrstuhl für Physikalische Chemie I, ou_persistent22              
5Departamento de Química Orgánica, Facultad de CC Químicas, Universidad Complutense de Madrid, ou_persistent22              
6Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              

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 Abstract: We describe the functionalization of SWNTs enriched in (6,5) chirality with electron donating macrocycles to yield rotaxane-type mechanically interlocked carbon nanotubes (MINTs). Investigations by means of electron microscopy and control experiments corroborated the interlocked nature of the MINTs. A comprehensive characterization of the MINTs through UV-vis-NIR, Raman, fluorescence, transient absorption spectroscopy, cyclic voltammetry, and chronoamperometry was carried out. Analyses of the spectroscopic data reveal that the MINT-forming reaction proceeds with diameter selectivity, favoring functionalization of (6,5) SWNTs rather than larger (7,6) SWNTs. In the ground state, we found a lack of significant charge-transfer interactions between the electron donor exTTF and the SWNTs. Upon photoexcitation, efficient charge-transfer between the electron donating exTTF macrocycles and SWNTs was demonstrated. As a complement, we established significantly different charge-transfer rate constants and diffusion coefficients for MINTs and the supramolecular models, which confirms the fundamentally different type of interactions between exTTF and SWNTs in the presence or absence of the mechanical bond. Molecular mechanics and DFT calculations support the experimental findings.

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Language(s): eng - English
 Dates: 2016-02-102016-04-112016-04-122016-05-07
 Publication Status: Published in print
 Pages: 11
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1039/c6nr01182a
 Degree: -

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Project name : A. dJ. and E. M. P. gratefully acknowledge funding from the European Research Council MINT (ERC-StG-2012-307609), the Comunidad Autónoma de Madrid (MAD2D S2013/MIT-3007) and the MINECO of Spain (CTQ2014-60541-P). Y. P. and A. R. acknowledge financial support from the European Research Council (ERC-2010-AdG-267374), Spanish grant (FIS2013-46159-C3-1-P), Grupos Consolidados (IT578-13), and AFOSR Grant No. FA2386-15-1-0006 AOARD 144088, H2020- NMP-2014 project MOSTOPHOS, GA no. SEP-210187476 and COST Action MP1306 (EUSpec), as well as technical and human support provided by IZO-SGI SGIker of UPV/EHU and its European funding (ERDF and ESF). N. M. gratefully acknowledges financial support from the European Research Council ERC-2012-ADG-320441 (Chirallcarbon), MINECO of Spain (project CTQ2014-52045-R), MOLESCO (Grant Number 606728), and CAM (FOTOCARBON Project S2013/ MIT-2841). N. M. is indebted to the Alexander von Humboldt Foundation. D. M. G. gratefully acknowledges funding from the Deutsche Forschungsgemeinschaft as part of the Colla- borative Research Centre SFB 953 “ Synthetic Carbon Allo- tropes ” and of the Excellence Cluster “ Engineering of Advanced Materials ” . The Bayerische Staatsregierung is acknowledged for funding granted as part of the “ Solar Technologies go Hybrid ” initiative. E. L. is thankful for support by the Comunidad Autónoma de Madrid (project NANOAVANSENS S2013/MIT-3029) and the Spanish Ministerio de Ciencia e Innovacion (project CTQ2014-53334-C2-1-R).
Grant ID : 210187476
Funding program : Horizon 2020 (H2020)
Funding organization : European Commission (EC)

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Title: Nanoscale
Source Genre: Journal
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Publ. Info: Cambridge, UK : Royal Society of Chemistry
Pages: - Volume / Issue: 8 (17) Sequence Number: - Start / End Page: 9254 - 9264 Identifier: ISSN: 2040-3364
CoNE: https://pure.mpg.de/cone/journals/resource/2040-3364