Results 301 to 310 of about 110,157 (321)
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Advances in Space Research, 1997
The discovery and synthesis of fullerenes led to the hypothesis that they may be present and stable in interstellar space. Fullerenes have been reported in an impact crater on the LDEF spacecraft. Investigations of fullerenes in carbonaceous meteorites have yielded only small upper limits. Fullerene compounds and their ions could be interesting carrier
Bernard Foing, Pascale Ehrenfreund
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The discovery and synthesis of fullerenes led to the hypothesis that they may be present and stable in interstellar space. Fullerenes have been reported in an impact crater on the LDEF spacecraft. Investigations of fullerenes in carbonaceous meteorites have yielded only small upper limits. Fullerene compounds and their ions could be interesting carrier
Bernard Foing, Pascale Ehrenfreund
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ChemInform Abstract: Fullerenes and Fullerene Ions in the Gas Phase [PDF]
ChemInform, 2000 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Bohme, D.K. +2 more
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Journal of the American Chemical Society, 2005
Fullerenes were pyrolyzed by subliming them into a stream of flowing argon gas and then passing them through an oven heated to approximately 1000 degrees C. C(76), C(78), and C(84) all readily lost carbons to form smaller fullerenes. In the case of C(78), some isomerization was seen.
R. James Cross, Martin Saunders
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Fullerenes were pyrolyzed by subliming them into a stream of flowing argon gas and then passing them through an oven heated to approximately 1000 degrees C. C(76), C(78), and C(84) all readily lost carbons to form smaller fullerenes. In the case of C(78), some isomerization was seen.
R. James Cross, Martin Saunders
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Bipartivity of fullerene graphs and fullerene stability
Chemical Physics Letters, 2005A recently introduced measure of bipartivity in complex networks is tested in the role of a selector of stable fullerene isomers. Its performance is compared with other proposed stability predictors on the set of experimentally characterized fullerene isomers. It is found out that the new predictor exhibits a high degree of selectivity.
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Acta Crystallographica Section A Foundations of Crystallography, 2002
The most symmetrical C50 to C70 fullerenes with minimum numbers of pairs of adjacent pentagonal facets are considered in this paper. Like the well known C60 (35m) and C70 (10m2) fullerenes with no adjacent pentagonal facets, they appear to be stable in physical experiments and cause the visible peaks in mass spectra of carbon clusters produced by laser
Yury L. Voytekhovsky +1 more
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The most symmetrical C50 to C70 fullerenes with minimum numbers of pairs of adjacent pentagonal facets are considered in this paper. Like the well known C60 (35m) and C70 (10m2) fullerenes with no adjacent pentagonal facets, they appear to be stable in physical experiments and cause the visible peaks in mass spectra of carbon clusters produced by laser
Yury L. Voytekhovsky +1 more
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Toxicity of functionalized fullerene and fullerene synthesis chemicals
Chemosphere, 2018Fullerene is one of the most studied carbon-based nanoparticles due to its unique structure and potential for diverse applications. This study focuses on toxicological effects of two fullerene nanomaterials, contributing to ecological as well as human risk assessment strategies.
Christopher J. Martyniuk +4 more
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Preparation of Fullerenes and Fullerene-Based Materials
ChemInform, 1994AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Chia Chun Chen, Charles M. Lieber
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Superconductivity and Fullerenes
Materials Science Forum, 1998The conduction of electric current with no losses, expulsion of the magnetic field and appearance of macroscopic quantum phenomena are the characteristics which mark the superconductors as materials with extremely interesting properties. During the last several years great interest of scientists has been aroused by a particular class of superconducting
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Pollyynes and the formation of fullerenes
Philosophical Transactions of the Royal Society of London. Series A: Physical and Engineering Sciences, 1993The synthesis and microwave study of linear cyanopolyynes, HC 5 N and HC 7 N, in the mid-1970s was followed by the unanticipated detection of these, and longer chains (HC 9 N and HC 11 N), in space.
D. R. M. Walton +3 more
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Physical Review B, 1992
To understand fullerenes, it is crucial to determine the energies, and hence the relative stabilities, of different structures. Here we introduce an approach to calculating and understanding these energies, by applying elasticity theory. Explicit formulas are given for the energies of ball-shaped molecules, graphite tubules, and the recently proposed ...
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To understand fullerenes, it is crucial to determine the energies, and hence the relative stabilities, of different structures. Here we introduce an approach to calculating and understanding these energies, by applying elasticity theory. Explicit formulas are given for the energies of ball-shaped molecules, graphite tubules, and the recently proposed ...
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