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Mass Spectral Study of Extractable La‐ and Lu‐Containing Fullerenes
Author(s) -
Hao Chunyan,
Xu Wenguo,
Liu Ziyang,
Guo Xinghua,
Liu Shuying
Publication year - 1997
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/(sici)1097-0231(199703)11:5<451::aid-rcm852>3.0.co;2-r
Subject(s) - chemistry , fullerene , mass spectrum , lutetium , ion , mass spectrometry , lanthanide , spectral line , ionization , analytical chemistry (journal) , electron ionization , polyatomic ion , organic chemistry , chromatography , physics , astronomy , yttrium , oxide
Mass spectra of La x C 2 n ( x = 1,2), well known endohedral metallofullerenes, and Lu 2 C 2 n (2 n = 76–112), new members of extractable metallofullerenes, were studied. Positive‐ion laser desorption/ionization (LDI) and electron impact (EI) mass spectra indicated that lutetium is a special lanthanide that prefers to form dilutetium fullerenes by the arc‐burning method. However, the signals for Lu 2 C 2 n become very weak in negative‐ion LDI‐MS, this is different from La 2 @C 80 , which has close relative abundances in positive‐ and negative‐ion MS. The distinction between Lu 2 C 2 n and La 2 @C 80 in the negative‐ion LDI mass spectra may be due to the different structures of La‐ and Lu‐containing fullerenes. © 1997 John Wiley & Sons, Ltd.