Journal ArticleDOI
The Higher Fullerenes: Isolation and Characterization of C76, C84, C90, C94, and C70O, an Oxide of D5h-C70
François Diederich,Roland Ettl,Yves Rubin,Robert L. Whetten,Rainer D. Beck,Marcos M. Alvarez,Samir J. Anz,Dilip K. Sensharma,Fred Wudl,K. C. Khemani,A. Koch +10 more
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The toluene extract of the fluffy carbon material produced by resistive heating of graphite contains a variety of molecules larger than C60 and C70 in a total amount of 3 to 4% by weight that are identified as higher fullerenes.Abstract:
The toluene extract of the fluffy carbon material produced by resistive heating of graphite contains a variety of molecules larger than C(60) and C(70) in a total amount of 3 to 4% by weight. Repeated chromatography of this material on neutral alumina has led to the isolation of stable solid samples of C(76), C(84), C(90), and C(94). The characterization, which includes mass spectrometry, (13)C nuclear magnetic resonance, electronic absorption (ultraviolet/visible) and vibrational (infrared) spectroscopy identifies these all-carbon molecules as higher fullerenes. In addition, C(70)O, a stable oxide, has been isolated that is structurally and electronically closely related to D5h-C(70). This compound forms during the resistive heating process and probably has an oxygen atom inserted between two carbon atoms on the convex external surface of the C(70) skeleton.read more
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Chemistry of the fullerenes: the manifestation of strain in a class of continuous aromatic molecules.
TL;DR: Application of the wr-orbital axis vector theory to the geometries of structurally characterized organometallic derivatives of C60 and C70 shows that the reactivity exhibited by the fullerenes may be attributed to the relief of a combination of local and global strain energy.
Journal ArticleDOI
Catalytic growth of carbon microtubules with fullerene structure
TL;DR: In this article, a method to grow carbon microtubules with fullerene structure (buckytubes) has been identified, which consists of the catalytic decomposition of acetylene over iron particles at 700 °C.
Book
The Chemistry of Fullerenes
TL;DR: The fullerenes instead undergo a wide variety of reactions characteristic of alkenes as mentioned in this paper, and the many derivatives of C60 and C70 have been reported to offer new directions for organic chemistry.
Journal ArticleDOI
Covalent Fullerene Chemistry
François Diederich,Carlo Thilgen +1 more
TL;DR: The covalent functionalization of C 60 has developed vigorously over the past 5 years and several methods are now available for the formation of c 60 monoadducts.
Journal ArticleDOI
Chiral Inorganic Nanostructures
TL;DR: This review will cover both experiment and theory of chiral nanostructures starting with the origin and multiple components of mirror asymmetry of individual NPs and their assemblies, and shall consider four different types of chirality in nanostructure and related physical, chemical, and biological effects.
References
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Journal ArticleDOI
C 60 : Buckminsterfullerene
Harold W. Kroto,Harold W. Kroto,James R. Heath,Sean C. O'Brien,Robert F. Curl,Richard E. Smalley +5 more
TL;DR: In this article, the authors proposed a truncated icosahedron, a polygon with 60 vertices and 32 faces, 12 of which are pentagonal and 20 hexagonal.
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Solid C60: a new form of carbon
TL;DR: In this article, a new form of pure, solid carbon has been synthesized consisting of a somewhat disordered hexagonal close packing of soccer-ball-shaped C60 molecules.
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Photophysical properties of C60
James W. Arbogast,Aleksander P. Darmanyan,Christopher S. Foote,Yves Rubin,François Diederich,Marcos M. Alvarez,Samir J. Anz,Robert L. Whetten +7 more
TL;DR: A number of important photophysical properties of C{sub 60} have been determined, including its lowest triplet state energy (near 33 kcal/mol), lifetime, and triplet-triplet absorption spectrum as mentioned in this paper.
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Efficient production of C60 (buckminsterfullerene), C60H36, and the solvated buckide ion
R. E. Haufler,J. Conceicao,L. P. F. Chibante,Y. Chai,N. E. Byrne,Scott Flanagan,Michael M. Haley,Sean C. O'Brien,C. Pan +8 more
TL;DR: Buckminsterfullerene, C{sub 60}, was prepared in gram quantities by contact-arc vaporization of a graphite rod in a 100-Torr atmosphere of helium, followed by extraction of the resultant graphite soot with toluene as discussed by the authors.
Journal ArticleDOI
Production and characterization of supersonic carbon cluster beams
TL;DR: In this paper, a supersonic beam of carbon clusters is generated using graphite as the substrate, and carbon clusters Cn for n=1−190 have been produced having a distinctly bimodal cluster size distribution: (i) both even and odd clusters for Cn, 1≤n≤30; and (ii) only even clusters C2n, 20−n−90.