Results 151 to 160 of about 1,104 (197)
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Mass Spectrometry of Metallofullerenes
MRS Proceedings, 1992ABSTRACTFullerenes with a metal atom inside of the cage, metallofulierenes, were produced by either laser vaporization or a graphite arc and characterized using a variety of mass spectrometric methods. First, yttrium-fullerene adducts were formed by direct laser vaporization of samples consisting of graphite, yttrium oxide and fullerenes. Fragmentation
Mark M. Ross +3 more
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Calculations of Metallofullerene Yields
Journal of Computational and Theoretical Nanoscience, 2011The paper reports computations for Mg@C74, Ca@C74, Sr@C74, Ba@C74, and all lanthanoids, based on encapsulation into the only C 74 IPR (isolated pentagon rule) cage, and for Al@C 82 , Sc@C82, Y@C82 and La@C82 based on encapsulation into the IPR C2v C82 cage.
Shigeru Nagase +2 more
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Characterization of actinide metallofullerenes
AIP Conference Proceedings, 2001In this paper, the characterization of a number of actinoid metallofullerenes is reported. From the similarity of the HPLC elution behavior and identification by mass spectroscopy we observe that the electronic structures of U, Np, and Am metallofullerenes are extremely similar to that of Ce@C82 and that the oxidation states of encapsulated Th and Pa ...
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Production and characterization of metallofullerenes
The Journal of Physical Chemistry, 1992Negative ion/description chemical ionization mass spectrometry was used in this paper to characterize La{sub x}@C{sub n} and Y{sub x}@C{sub n} fullerenes in soot generated from metal compound-impregnated graphite rods. La@C{sub 82} and La@C{sub 80} are extracted by pyridine from the soot, but La@C{sub 60} and La@C{sub 70} are not.
Mark M. Ross +3 more
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A metallofullerene that encapsulates 225Ac
Journal of Radioanalytical and Nuclear Chemistry, 2009The properties of a metallofullerene that encapsulates 225Ac were studied by radio-chromatographic methods. The results of chromatography on a Buckyclutcher column suggest that there are some metallofullerene isomers of AcC82. The identical HPLC retention time of the major AcC82 peak with that of La@C82 indicates that the structure of one of the AcC82 ...
K. Akiyama +7 more
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Concentrating of Higher Metallofullerenes
Fullerenes, Nanotubes and Carbon Nanostructures, 2012The method is presented for concentrating the fraction of “superhigher” (M@C 2n , 2n ≤ 160) metallofullerenes. The method is based on scarce solubility of superhigher fullerenes in the usual (free of nitrogen) solvents.
Yu. S. Grushko +3 more
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COLLISIONAL FORMATION OF METALLOFULLERENES
Cluster and Nanostructure Interfaces, 2000Metallofullerenes are synthesized by bombarding C60 with alkali metal ions. Two different approaches are used: Ion implantation into a film of fullerenes, and gas-phase collisions. The film is grown by vapor deposition onto a rotating target; metal ions produced by surface ionization are co-implanted during film growth. A pulsed laser beam subsequently
Deng, Rongping +2 more
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ChemInform Abstract: Metallofullerenes
ChemInform, 1997AbstractChemInform 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.
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Light-Driven Molecular Magnetic Switch for a Metallofullerene^(※)
Acta Chimica Sinica, 2022Liping Wang
exaly