fullerene C60

fullerene C60
Name	Fullerene C60
Caption	Molecular model of C60
Formula	C60
Molar mass	720.66 g·mol−1
Appearance	Black solid (powder or thin film)
Density	1.65 g·cm−3
Melting point	Sublimes ≈ 800 K
Solubility	Soluble in aromatic solvents

fullerene C60

fullerene C60 is a molecular allotrope of carbon composed of sixty carbon atoms arranged in a truncated icosahedron. Discovered in the context of carbon cluster research, it bridged experimental work in physical chemistry and theoretical studies in materials science and influenced research at institutions such as the University of Arizona and the Rice University laboratories. The molecule became emblematic in frontier studies involving nanotechnology, supramolecular chemistry, and molecular electronics.

Introduction

Fullerene C60 emerged from mass‑spectrometric studies and laser vaporization experiments associated with researchers at institutions like the University of Sussex, University of Arizona, and Rice University, prompting interest from laboratories at IBM, Harvard University, MIT, and the Max Planck Society. Its discovery led to awards such as the Nobel Prize in Chemistry and attracted attention from industrial research groups including DuPont and BASF as well as governmental research programs at the National Science Foundation and the European Research Council. Early theoretical analysis drew on methods developed at institutions like Cambridge and Caltech and spurred collaborations with national laboratories such as Lawrence Berkeley and Sandia.

Structure and Properties

C60 adopts a truncated icosahedral geometry related to classical models studied by mathematicians and crystallographers at institutions such as Trinity College, Princeton University, and ETH Zurich. Bonding descriptions invoke concepts from quantum chemistry developed at the University of Chicago and Columbia University and analytical techniques refined at Lawrence Livermore and Oak Ridge. Electronic structure studies referenced computational approaches from Stanford University, Imperial College London, and the University of Tokyo, linking to correlated electron work at Bell Labs and theoretical groups at the Institute for Advanced Study. Mechanical and thermal properties were measured in facilities at Carnegie Mellon, the University of Pennsylvania, and KAIST.

Synthesis and Production

Primary laboratory synthesis of C60 used arc‑discharge methods pioneered by teams at Rice University and the University of Sussex and scaled in pilot production by companies such as BASF and MER Corporation. Alternative routes included laser ablation experiments from groups at MIT and Los Alamos National Laboratory and combustion synthesis explored by researchers at Yale University and Brown University. Purification methods employed chromatography techniques developed at Columbia University and analytic protocols standardized by ISO committees and tested in facilities such as NIST and the National Physical Laboratory. Commercial supply chains involved partnerships with chemical companies like Sigma‑Aldrich and academic spinouts associated with Stanford and the University of Cambridge.

Chemical Reactions and Derivatives

Chemical functionalization of C60 was advanced by research groups at Harvard University, Kyoto University, and the Weizmann Institute, yielding adducts and derivatives used in studies at CERN and the European Synchrotron Radiation Facility. Reactions include cycloadditions investigated by labs at ETH Zurich and the University of California, reactions with organometallic complexes pursued at the Max Planck Institute, and redox chemistry studied at Rutgers University and the University of Leeds. Endohedral complexes incorporating metals were developed by teams at Tohoku University and Moscow State University, while polymer composites integrating C60 were explored at MIT, the University of Illinois, and Tokyo Institute of Technology.

Physical and Spectroscopic Characteristics

Spectroscopic characterization employed techniques from facilities such as the Advanced Photon Source, ESR and NMR instrumentation from institutions like the Royal Institution and the RIKEN center, and electron microscopy at the IBM Almaden Research Center and Lawrence Berkeley National Laboratory. Raman, infrared, UV–vis, and photoelectron spectroscopy work drew on methodologies refined at Cornell University, Max Planck Institute for Polymer Research, and the Swiss Light Source. Crystallographic analyses used beamlines at DESY and the European Molecular Biology Laboratory, with theoretical interpretations from groups at the Perimeter Institute and the Kavli Institute.

Applications and Uses

Investigations into applications engaged interdisciplinary teams from MIT, Caltech, and the University of Oxford, with focus areas including organic photovoltaics tested at the National Renewable Energy Laboratory, drug delivery research at Johns Hopkins University and the Mayo Clinic, and lubricants development by industrial labs such as Shell and ExxonMobil. C60‑based materials featured in spintronics studies at IBM Research and quantum information proposals from the University of Waterloo and the Center for Quantum Technologies. Photovoltaic and organic electronic devices incorporating fullerene derivatives were prototyped by Samsung and Panasonic research centers and evaluated in pilot programs at the European Commission and DARPA.

Safety and Environmental Impact

Toxicology and environmental fate studies were conducted by research groups at the EPA, WHO collaborating centers, and academic labs including the University of California, Davis, and the University of Toronto. Regulatory assessment involved agencies such as the FDA and ECHA, while occupational exposure guidelines referenced work by OSHA and NIOSH. Environmental monitoring programs led by NOAA and UNEP considered persistence, bioaccumulation, and ecotoxicology in freshwater and marine ecosystems studied by institutions like Scripps Institution of Oceanography and the Woods Hole Oceanographic Institution.

Category:Carbon allotropes