The Shapes of Fullerenes

Aktivitet: Tale eller præsentation - typerForedrag og mundtlige bidrag


James Emil Avery - Foredragsholder

Fullerenes are carbon molecules that form polyhedral cages with surfaces similar to graphene sheets, and whose bond structures are exactly those planar cubic graphs that have only pentagon and hexagon faces. Their geometrical properties make some fullerenes incredibly strong, while the 12-pentagon rule allows opening the hollow shell by changing a single pentagon to a hexagon. This makes them interesting as delivery systems, reflected by their occurrence in nature in other forms in addition to carbon structures. For example, a number of virus capsids, which protect and deliver genetic material, are fullerene analogs.

Many chemical and physical properties of fullerenes are uniquely determined by their bond graphs, and can be approximated very rapidly directly from the graph. This is important when we wish to search through millions of fullerene isomers to select a few according to desired properties, such as stability, shapes, malleability, electrical properties, etc.

In this talk, I will describe a method that derives one such property, the three-dimensional shape of a fullerene, from its graph by way of its induced Riemannian surface metric, at speeds that allows automatic study of millions of fullerene isomers. The method is in an
experimental stage, but has shown promising preliminary results.
11 feb. 2016

Begivenhed (Konference)

TitelConference in Honour of Professor Peter Schwerdtfeger's 60th Birthday
Forkortet titelPeter-Fest
AfholdelsesstedCentre for Theoretical Chemistry and Physics, Massey University
LandNew Zealand
Grad af anerkendelseInternational begivenhed

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