Incorporation of helium, neon, argon, krypton, and xenon into fullerenes using high pressure

Journal Article · Wed Mar 09 04:00:00 EST 1994 · Journal of the American Chemical Society; (United States)

DOI:https://doi.org/10.1021/ja00084a089· OSTI ID:7267448

Saunders, M; Jimenez-Vazquez, H A; Cross, R J; Mroczkowski, S ^[1]; Gross, M L; Giblin, D E ^[2]; Poreda, R J ^[3]

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1. Yale Univ., New Haven, CT (United States)
2. Univ. of Nebraska, Lincoln, NE (United States)
3. Univ. of Rochester, NY (United States)

To investigate the spectroscopic and other properties of these interesting noble gas compounds, it is necessary to increase the fraction of fullerene molecules occupied. We have done this by carrying out the incorporation step at high pressures of the gas. Part-per-million levels of the noble gases produce no measurable effects in the conventional mass spectrum, since the peaks due to ions containing these atoms are well below the noise level. However, samples of fullerene heated in the presence of Ne (38,000 psi, 66% recovery), Ar (40,000 psi, 45% recovery), Kr (24,500 psi, 25% recovery), and Xe (18,000 psi, 45% recovery) show distinct and reproducible peaks (electron impact ionization) for fullerene ions containing the noble gases. The theoretical mass spectra of the corresponding adducts were calculated using the natural isotopic abundance of the involved atoms. Agreement between calculated and experimental curves provides convincing evidence that Ne C[sub 60], Ar C[sub 60], Kr C[sub 60], Xe C[sub 60], Ne C[sub 70], Ar C[sub 70], Kr C[sub 70], and Xe C[sub 70] have been synthesized. 18 refs., 2 figs.

• OSTI ID: 7267448
• Journal Information: Journal of the American Chemical Society; (United States), Journal Name: Journal of the American Chemical Society; (United States) Vol. 116:5; ISSN JACSAT; ISSN 0002-7863
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400201* -- Chemical & Physicochemical Properties
ARGON
CARBON
COMPLEXES
ELEMENTS
FLUIDS
FULLERENES
GASES
HELIUM
HIGH PRESSURE
KRYPTON
MAGNETIC RESONANCE
MASS SPECTROSCOPY
NEON
NONMETALS
NUCLEAR MAGNETIC RESONANCE
PRESSURE DEPENDENCE
RARE GASES
RESONANCE
SPECTROSCOPY
SYNTHESIS
XENON