Automated HPLC separation of endohedral metallofullerene ScC{sub 2n} and YC{sub 2n} fractions

Journal Article · Thu Sep 01 04:00:00 UTC 1994 · Analytical Chemistry (Washington)

DOI:https://doi.org/10.1021/ac00089a013· OSTI ID:102755

Stevenson, S; Dorn, H C; Burbank, P; Harich, K; Haynes, J Jr ^[1]; Kiang, C H ^[2]; Salem, J R; DeVries, M S; Loosdrecht, P H.M. van; Johnson, R D; Yannoni, C S; Bethune, D S ^[3]

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1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)
2. California Inst. of Technology, Pasadena, CA (United States)
3. IBM Research Division, San Jose, CA (United States)

We describe an automated HPLC separation of the endohedral metallofullerenes such as SCC{sub 2n} and YC{sub 2n} from empty-cage fullerenes utilizing two polystyrene chromatographic columns (500 and 1000 A) in series. Rapid separation of the metallofullerene fraction from the empty-cage fullerenes (e.g., C{sub 60}) under anaerobic conditions is achieved. For the isolated SCC{sub 2n} fraction, all even-carbon-membered species from Sc{sub 2}C{sub 74} to Sc{sub 2}C{sub 104} were identified by negative-ion chemical ionization mass spectrometry. In addition, Sc{sub 3}C{sub 82} was a prominent component of this fraction. For the separated YC{sub 2n} sample, the mass spectral data indicate the presence of YC{sub 82} and all even-carbon-numbered diyttrium species from Y{sub 2}C{sub 82} to Y{sub 2}C{sub 104}. 14 refs., 7 figs.

• Sponsoring Organization: USDOE
• OSTI ID: 102755
• Journal Information: Analytical Chemistry (Washington), Journal Name: Analytical Chemistry (Washington) Journal Issue: 17 Vol. 66; ISSN ANCHAM; ISSN 0003-2700
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
AUTOMATION
ELECTRON SPIN RESONANCE
FULLERENES
LIQUID COLUMN CHROMATOGRAPHY
MASS SPECTROSCOPY
ORGANOMETALLIC COMPOUNDS
POLYSTYRENE
SCANDIUM COMPLEXES
YTTRIUM COMPLEXES