Mass spectroscopic and ESR characterization of soluble yttrium-containing metallofullerenes YC{sub 82} and Y{sub 2}C{sub 82}

Journal Article · Thu Apr 30 04:00:00 EDT 1992 · Journal of Physical Chemistry

DOI:https://doi.org/10.1021/j100188a004· OSTI ID:232251

Shinohara, Hisanori; Sato, Hiroyasu; Saito, Yahachi ^[1]

---

1. Mi`e Univ., Tsu (Japan); and others

Solvent soluble, yttrium-containing fullerenes are extracted from yttrium/carbon soot produced by the carbon-arc fullerene generation method. An yttrium-graphite composite yields solvent extractable molecules such as YC{sub 82} and Y{sub 2}C{sub 82} as evidenced by a laser desorption time-of-flight (LD-TOF) mass spectroscopic analysis of the extracts. This is consistent with the very recent results by Smalley et al. where YC{sub 82} and Y{sub 2}C{sub 82} are prepared by laser vaporization of yttrium-graphite rods. The present extracts are souble by both toluene and carbon disulfide, but the solubility is much higher is CS{sub 2} than toluene. LD-TOF mass spectra also show the presence of a series of peaks due to the dimetallofullerens Y{sub 2}C{sub 2n}(2n = 84; 90 {le} 2n {le}140). The metallofullerenes YC{sub 60} and YC{sub 70} are not observed in the mildest possible LD conditions under which YC{sub 82} and the dimetallofullerenes Y{sub 2}C{sub 82} and Y{sub 2}C{sub 2n} are readily observed. ESR spectral results are also reported for the present yttrium-fullerene complexes and indicate the charge separation state of Y{sup 3+}C{sub 82}{sup 3-} as has been found for La{sup 3+}C{sub 82}{sup 3-} by Johnson et. al. 13 refs., 4 figs.

• Sponsoring Organization: USDOE
• OSTI ID: 232251
• Journal Information: Journal of Physical Chemistry, Journal Name: Journal of Physical Chemistry Journal Issue: 9 Vol. 96; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
ELECTRON SPIN RESONANCE
FULLERENES
MASS SPECTROSCOPY
STRUCTURAL CHEMICAL ANALYSIS
YTTRIUM COMPOUNDS