Linked Life Data

19003823

Source:http://linkedlifedata.com/resource/pubmed/id/19003823

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2008-12-16
pubmed:abstractText
Mechanisms for controlling the assembly of molecular arrays in carbon nanotubes via alteration of the size and geometry of the functional groups attached to the molecules inserted into the nanotubes are studied. As model compounds, a series of structurally related fullerenes functionalized with polyaryl groups (C(60)X, where X is a polyaryl group) of various lengths are synthesized to explore this effect. These molecules are inserted into single-walled carbon nanotubes (SWNTs) under mild conditions to prevent their decomposition and to form C(60)X@SNWT structures. The molecular chains thus formed are studied by high-resolution transmission electron microscopy, X-ray diffraction, and Raman spectroscopy, revealing that the functional groups increase the interfullerene separation proportionally with the size of X. However, the functional groups themselves appear to adopt various orientations with respect to each other and exhibit intermolecular pi-pi interactions within the cavities of the carbon nanotubes. All these effects create a distribution of observed interfullerene separations in nanotubes, which are examined by theoretical simulations and interpreted in terms of molecular geometries and intermolecular interactions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1613-6829
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
4
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2262-70
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Polyarene-functionalized fullerenes in carbon nanotubes: towards controlled geometry of molecular chains.
pubmed:affiliation
School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, UK.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't