منابع مشابه
Fullerenes as polyradicals
Electronic structure of X60 molecules (X=C, Si) is considered in terms of 60 odd electrons and spin-dependent interaction between them. Conditions for the electrons to be excluded from the covalent pairing are discussed. A computational spin-polarized quantumchemical scheme is suggested to evaluate four parameters (energy of radicalization, exchange integral, atom spin density, and squared spin...
متن کاملFullerenes as Tilings of Surfaces
If a fullerene is defined as a finite trivalent graph made up solely of pentagons and hexagons, embedding in only four surfaces is possible: the sphere, torus, Klein bottle, and projective (elliptic) plane. The usual spherical fullerenes have 12 pentagons; elliptic fullerenes, 6; and toroidal and Klein-bottle fullerenes, none. Klein-bottle and elliptic fullerenes are the antipodal quotients of ...
متن کاملFullerenes as Agents for Chemotherapeutic Drug Delivery
In a world where the scale of technology is continuously shrinking, from phones to cars to solar panels, nanotechnology is seeing a rise in applications. Recently, increased use of nanotechnology in the medical industry brought fullerenes, sometimes referred to as Buckyballs, to the forefront. Fullerenes are currently being developed by engineers to encapsulate a chemotherapeutic drug and deliv...
متن کاملFullerenes as the carriers of compounds with amide bond.
Fullerenes are molecules created solely of carbon and have a highly unusual attributes. The smallest structure in the fullerene family is conformation C20, which consists of pentagonal rings only, resulting in its instability. The C60 is the first fullerene containing 12 pentagonal and 20 hexagonal rings in which pentagons do not share an edge. It results in good stability of the carbon cage. T...
متن کاملBipartizing fullerenes
A fullerene graph is a cubic bridgeless planar graph with twelve 5-faces such that all other faces are 6-faces. We show that any fullerene graph on n vertices can be bipartized by removing O( √ n) edges. This bound is asymptotically optimal.
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ژورنال
عنوان ژورنال: Open Physics
سال: 2004
ISSN: 2391-5471
DOI: 10.2478/bf02476279