Formation of high-aspect-ratio helical nanorods via chiral self-assembly of fullerodendrimers

Andrew J. Hilmer; Darin O. Bellisario; Steven Shimizu; Thomas P. McNicholas; Qing Hua Wang; Scott A. Speakman; Michael S. Strano

doi:10.1021/jz500138d

Formation of high-aspect-ratio helical nanorods via chiral self-assembly of fullerodendrimers

Andrew J. Hilmer, Darin O. Bellisario, Steven Shimizu, Thomas P. McNicholas, Qing Hua Wang, Scott A. Speakman, Michael S. Strano

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

Two novel, asymmetric methanofullerenes are presented, which self-assemble in cyclohexane upon thermal cycling to 80 C. We show that, through the introduction of a dipeptide sequence to one terminus of the dendritic methanofullerene, it is possible to transform the assembly behavior of these molecules from poorly formed aggregates to high-aspect-ratio nanorods. These nanorods have diameters of 3.76 ± 0.52 nm and appear to be composed of interwoven helices of dendritic fullerenes. As evidenced by circular dichroism, the helicity is characterized by a preferential handedness of assembly, which is imparted by the dipeptide moiety.

Original language	English (US)
Pages (from-to)	929-934
Number of pages	6
Journal	Journal of Physical Chemistry Letters
Volume	5
Issue number	5
DOIs	https://doi.org/10.1021/jz500138d
State	Published - Mar 6 2014
Externally published	Yes

Keywords

Bingel addition
benzyl dendron
fullerene
methanofullerene
nanorod
self-assembly

ASJC Scopus subject areas

General Materials Science
Physical and Theoretical Chemistry

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10.1021/jz500138d

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title = "Formation of high-aspect-ratio helical nanorods via chiral self-assembly of fullerodendrimers",

abstract = "Two novel, asymmetric methanofullerenes are presented, which self-assemble in cyclohexane upon thermal cycling to 80 C. We show that, through the introduction of a dipeptide sequence to one terminus of the dendritic methanofullerene, it is possible to transform the assembly behavior of these molecules from poorly formed aggregates to high-aspect-ratio nanorods. These nanorods have diameters of 3.76 ± 0.52 nm and appear to be composed of interwoven helices of dendritic fullerenes. As evidenced by circular dichroism, the helicity is characterized by a preferential handedness of assembly, which is imparted by the dipeptide moiety.",

keywords = "Bingel addition, benzyl dendron, fullerene, methanofullerene, nanorod, self-assembly",

author = "Hilmer, {Andrew J.} and Bellisario, {Darin O.} and Steven Shimizu and McNicholas, {Thomas P.} and Wang, {Qing Hua} and Speakman, {Scott A.} and Strano, {Michael S.}",

year = "2014",

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doi = "10.1021/jz500138d",

language = "English (US)",

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journal = "Journal of Physical Chemistry Letters",

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T1 - Formation of high-aspect-ratio helical nanorods via chiral self-assembly of fullerodendrimers

AU - Hilmer, Andrew J.

AU - Bellisario, Darin O.

AU - Shimizu, Steven

AU - McNicholas, Thomas P.

AU - Wang, Qing Hua

AU - Speakman, Scott A.

AU - Strano, Michael S.

PY - 2014/3/6

Y1 - 2014/3/6

N2 - Two novel, asymmetric methanofullerenes are presented, which self-assemble in cyclohexane upon thermal cycling to 80 C. We show that, through the introduction of a dipeptide sequence to one terminus of the dendritic methanofullerene, it is possible to transform the assembly behavior of these molecules from poorly formed aggregates to high-aspect-ratio nanorods. These nanorods have diameters of 3.76 ± 0.52 nm and appear to be composed of interwoven helices of dendritic fullerenes. As evidenced by circular dichroism, the helicity is characterized by a preferential handedness of assembly, which is imparted by the dipeptide moiety.

AB - Two novel, asymmetric methanofullerenes are presented, which self-assemble in cyclohexane upon thermal cycling to 80 C. We show that, through the introduction of a dipeptide sequence to one terminus of the dendritic methanofullerene, it is possible to transform the assembly behavior of these molecules from poorly formed aggregates to high-aspect-ratio nanorods. These nanorods have diameters of 3.76 ± 0.52 nm and appear to be composed of interwoven helices of dendritic fullerenes. As evidenced by circular dichroism, the helicity is characterized by a preferential handedness of assembly, which is imparted by the dipeptide moiety.

KW - Bingel addition

KW - benzyl dendron

KW - fullerene

KW - methanofullerene

KW - nanorod

KW - self-assembly

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ER -

Formation of high-aspect-ratio helical nanorods via chiral self-assembly of fullerodendrimers

Abstract

Keywords

ASJC Scopus subject areas

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