Lawrence Berkeley National Laboratory masthead A-Z Index Berkeley Lab masthead U.S. Department of Energy logo Phone Book Jobs Search
Tech Transfer
Licensing Interest Form Receive Customized Tech Alerts
C36--A New Class of Buckyballs

IB-1366

APPLICATIONS OF TECHNOLOGY:

  • Lubricants
  • Superconductors
  • Medical Imaging
  • Chemical catalysis
  • Recording device

ADVANTAGES:

  • Greater chemically reactivity than earlier buckyballs (C60) means more useful compounds
  • High superconducting transition temperatures

The above image depicts the D6h isomer of the C36 molecule.

 

 

ABSTRACT:

Berkeley Lab researchers, Alex Zettl, Steven Louie, Marvin Cohen and colleagues, have synthesized and isolated C36 fullerenes for designing new materials. C36 is more chemically reactive than C60 due to its higher percentage of 5-membered rings, so it will form a variety of stable compounds. For example, C36 fullerenes can be coated with other elements, such as F or Cl, to make teflon-like balls.

The researchers have also produced solid C36 – the first time a solid fullerene smaller than C60 has been synthesized. The molecules in the solid, which can form in several different structures, bind together covalently forming a very hard, polymerized solid. These solid, pure carbon C36 fullerites are expected to have high superconducting transition temperatures. Moreover, when some of the carbon atoms are substituted with other elements, such as nitrogen, selected bonds get shorter and the superconducting transition temperatures are predicted to be increased further.

The many possibilities for materials designed from C36 fullerenes include: halogenated C36 molecules for lubricants; C36 materials trapping radioactive tracers inside for medical imaging; covalently linked, hard, solid films of C36 molecules for catalyzing chemical reactions; magnetic atoms, trapped in stable, covalently bonded C36 fullerenes, for recording devices. C36-based materials can be used also for infrared detectors and other optical or electronic applications.

 

STATUS: Patent Pending. Available for licensing

REFERENCE NUMBER: IB-1366

FOR MORE INFORMATION PLEASE SEE:

Piskoti C., Yarger J., Zettl A., "A New Carbon Solid", Letters to Nature, v 393, 1997.

Crespi V. H., Cohen M. L., "In Situ Band Gap Engineering of Carbon Nanotubes", Physical Review Leters, 79, 2093, 1997.

SEE THESE OTHER BERKELEY LAB TECHNOLOGIES IN THIS FIELD:

See More Nano & Micro Technologies