Section 4 Molecular crystal Discovery and Applications of fullerenes

Smallest Fullerene a molecule with 20 carbons a molecule with 20 carbons (C20) (C20) Shape like a soccer ball Shape like a soccer ball It is hard to produce one because it is highly reactive It is hard to produce one because it is highly reactive (Unstable) (Unstable) C20

Other form of C20 There are two other forms of C20 (isomers) There are two other forms of C20 (isomers) Isomers have same number of atoms but with different structures Isomers have same number of atoms but with different structures One in ring One in ring One in bowl-shaped One in bowl-shaped C20(Ring shape) C20(Bowl shaped)

Nano-C nanostructured carbon materials nanostructured carbon materials Includes fullerenes, nanotubes and their chemical derivatives Includes fullerenes, nanotubes and their chemical derivatives Single nanotube Fullerene (C60)

Applications of nanotubes Actuators (Conversion of electrical energy to mechanical energy and vice versa ) Actuators (Conversion of electrical energy to mechanical energy and vice versa ) Sensors Sensors Composites, Paints & Coatings Composites, Paints & Coatings electronic devices electronic devices multi-walled carbon nanotubes

Buckyball the discovery of the C60 "buckyball" by the 1996 Nobel Prize laureates Robert F. Curl, Harold W. Kroto, and Richard E. Smalley the discovery of the C60 "buckyball" by the 1996 Nobel Prize laureates Robert F. Curl, Harold W. Kroto, and Richard E. Smalley Led by the most significant spin-off product of fullerene research Led by the most significant spin-off product of fullerene research Buckyball

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