TY - JOUR
T1 - Enrichment and characterization of a noble gas fullerene
T2 - ArC60
AU - Dicamillo, Barbara A.
AU - Hettich, Robert L.
AU - Guiochon, Georges
AU - Compton, Robert N.
AU - Saunders, Martin
AU - Jimenez-Vazquez, Hugo A.
AU - Khong, Anthony
AU - Cross, R. James
PY - 1996/1/1
Y1 - 1996/1/1
N2 - ArC60 synthesized by heating primarily C60 (with trace amounts of C70 under a high pressure of argon gas,was purified by high-performance liquid chromatography (HPLC) and examined by Fourier transform mass spectrometry (FTMS). The sample, which consisted of 0.1% ArC60, was dissolved in toluene and separated with HPLC using a COSMOSIL 5PYE column as the stationary phase and toluene as the eluent (UV detection). ArC60 was enriched by a factor of about 400 relative to the starting material. ArC60 was also examined by X-ray photoelectron spectroscopy (XPS) but was found to be sensitive to radiation damage and subsequent depletion. Low-energy collisional dissociation of Ar$+$/ C60+ in the FTMS yields primarily C58+, generated by loss of the argon atom and C2. The ionization potential of Ar$+$/C60 was bracketed by charge-exchange reactions and was found to be between 7.53 and 7.8 eV, which is indistinguishable from that of C60 (7.65 eV).
AB - ArC60 synthesized by heating primarily C60 (with trace amounts of C70 under a high pressure of argon gas,was purified by high-performance liquid chromatography (HPLC) and examined by Fourier transform mass spectrometry (FTMS). The sample, which consisted of 0.1% ArC60, was dissolved in toluene and separated with HPLC using a COSMOSIL 5PYE column as the stationary phase and toluene as the eluent (UV detection). ArC60 was enriched by a factor of about 400 relative to the starting material. ArC60 was also examined by X-ray photoelectron spectroscopy (XPS) but was found to be sensitive to radiation damage and subsequent depletion. Low-energy collisional dissociation of Ar$+$/ C60+ in the FTMS yields primarily C58+, generated by loss of the argon atom and C2. The ionization potential of Ar$+$/C60 was bracketed by charge-exchange reactions and was found to be between 7.53 and 7.8 eV, which is indistinguishable from that of C60 (7.65 eV).
UR - http://www.scopus.com/inward/record.url?scp=0030134692&partnerID=8YFLogxK
U2 - 10.1021/jp960049k
DO - 10.1021/jp960049k
M3 - Artículo
SN - 0022-3654
VL - 100
SP - 9197
EP - 9201
JO - Journal of physical chemistry
JF - Journal of physical chemistry
IS - 22
ER -