Amphiphilic anthanthrene trimers that exfoliate graphite and individualize single wall carbon nanotubes

Münich, Peter; Pfäffli, Matthias; Volland, Michel; Liu, Shi-Xia; Häner, Robert; Guldi, Dirk M. (2020). Amphiphilic anthanthrene trimers that exfoliate graphite and individualize single wall carbon nanotubes. Nanoscale, 12(2), pp. 956-966. Royal Society of Chemistry 10.1039/c9nr08062g

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A phosphodiester-linked dialkynyl substituted anthanthrene trimer (1) has been designed and synthesized. Its graphene ribbon like structure is expected to facilitate interactions with nanographene (NG) and single wall carbon nanotubes (SWCNT) to yield novel and stable carbon-based nanomaterials. Interactions with trimer 1 leads to exfoliation of NG and to the individualization of SWCNTs. Phosphate groups, in general, and their negative charges, in particular, render the resulting nanomaterials soluble in ethanol, which is ecologically favourable over DMF required for the processing of pristine NG or SWCNTs. The newly formed nanomaterials were probed by complementary spectroscopic and microscopic techniques. Of particular importance were transient absorption fluorescence excitation measurements, which revealed an efficient energy transfer within the carbon-based nanomaterials.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Häner, Robert

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

2040-3364

Publisher:

Royal Society of Chemistry

Funders:

[4] Swiss National Science Foundation

Language:

English

Submitter:

Robert Häner

Date Deposited:

26 Jun 2020 14:45

Last Modified:

26 Jun 2020 14:54

Publisher DOI:

10.1039/c9nr08062g

PubMed ID:

31840702

BORIS DOI:

10.7892/boris.136738

URI:

https://boris.unibe.ch/id/eprint/136738

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