Preparation and enrichment of samarium endohedral fullerenes

被引：29

作者：

Lian, YF ^{[1
]}

Shi, ZJ ^{[1
]}

Zhou, XH ^{[1
]}

He, XR ^{[1
]}

Gu, ZN ^{[1
]}

机构：

[1] Peking Univ, Dept Chem, Beijing 100871, Peoples R China

来源：

CHEMISTRY OF MATERIALS | 2001年 / 13卷 / 01期

关键词：

D O I：

10.1021/cm990732u

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A graphite anode packed with a powder mixture of Sm2Co17, SiC, and graphite with a high atomic ratio of Sm/C was vaporized by direct current are discharge under improved conditions including high helium pressure, low electric current, and wide electrode gap. The soot produced was successively extracted by CS2 and pyridine, and the extracts were processed through column chromatography on silica gel. Matrix-assisted laser desorption-ionization time-of-flight (MALD-TOF) mass spectrometry analysis indicated that a high yield of samarium endohedral fullerenes (Sm@C-2n) with Sm@C-84 as the most abundant one was achieved. Possible reasons leading to this high yield are discussed.

引用

页码：39 / 42

页数：4

共 28 条

[11] PREPARATION AND EXTRACTION OF CA-AT-C-60 [J].

KUBOZONO, Y ;

OHTA, T ;

HAYASHIBARA, T ;

MAEDA, H ;

ISHIDA, H ;

KASHINO, S ;

OSHIMA, K ;

YAMAZAKI, H ;

UKITA, S ;

SOGABE, T .

CHEMISTRY LETTERS, 1995, (06) :457-458

[12] Extractions of Y@C-60, Ba@C-60, La@C-60, Ce@C-60, PrC60, Nd@C-60 and Gd@C-60 with aniline [J].

Kubozono, Y ;

Maeda, H ;

Takabayashi, Y ;

Hiraoka, K ;

Nakai, T ;

Kashino, S ;

Emura, S ;

Ukita, S ;

Sogabe, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1996, 118 (29) :6998-6999

[13] Extractions of Ca@C-60 and Sr@C-60 with aniline [J].

Kubozono, Y ;

Noto, T ;

Ohta, T ;

Maeda, H ;

Kashino, S ;

Emura, S ;

Ukita, S ;

Sogabe, T .

CHEMISTRY LETTERS, 1996, (06) :453-454

[14] A spectroscopic study of M@C82 metallofullerenes:: Raman, far-infrared, and neutron scattering results [J].

Lebedkin, S ;

Renker, B ;

Heid, R ;

Schober, H ;

Rietschel, H .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1998, 66 (03) :273-280

[15]

LIAN YF, IN PRESS CARBON

[16] STUDIES OF METALLOFULLERENE PRIMARY SOOTS BY LASER AND THERMAL-DESORPTION MASS-SPECTROMETRY [J].

MORO, L ;

RUOFF, RS ;

BECKER, CH ;

LORENTS, DC ;

MALHOTRA, R .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (26) :6801-6805

[17] A novel approach to the synthesis of endohedral fullerenes as demonstrated by endohedral barium fullerenes [J].

Moschel, C ;

Jansen, M .

CHEMISCHE BERICHTE-RECUEIL, 1997, 130 (12) :1761-1764

[18] PRODUCTION AND CHARACTERIZATION OF METALLOFULLERENES [J].

ROSS, MM ;

NELSON, HH ;

CALLAHAN, JH ;

MCELVANY, SW .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (13) :5231-5234

[19] Electron spin resonance spectra: geometrical and electronic structure of endohedral fullerenes [J].

Seifert, G ;

Bartl, A ;

Dunsch, L ;

Ayuela, A ;

Rockenbauer, A .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1998, 66 (03) :265-271

[20] MASS SPECTROSCOPIC AND ESR CHARACTERIZATION OF SOLUBLE YTTRIUM-CONTAINING METALLOFULLERENES YC82 AND Y2C82 [J].

SHINOHARA, H ;

SATO, H ;

SAITO, Y ;

OHKOHCHI, M ;

ANDO, Y .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (09) :3571-3573

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