Premium
Extraction and mass spectroscopic characterization of giant fullerences up to C 500
Author(s) -
Shinohara Hisanori,
Sato Hiroyasu,
Saito Yahachi,
Izuoka Akira,
Sugawara Tadashi,
Ito Hiroyuki,
Sakurai Tohru,
Matsuo Takekiyo
Publication year - 1992
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/rcm.1290060702
Subject(s) - chemistry , fullerene , carbon fibers , molecule , mass spectrum , graphite , benzene , analytical chemistry (journal) , carbon black , vaporization , quinoline , extraction (chemistry) , toluene , mass spectrometry , organic chemistry , chromatography , materials science , natural rubber , composite number , composite material
Abstract A series of very large all‐carbon molecules has been successfully extracted with quinoline from fullerene‐rich carbon soots produced by the vaporization of graphite in a helium atmosphere using the contact are method. The present extracts (black powder) were found not to be soluble either in benzene or toluene, which are normally used as extraction solvents for C 60 and C 70 . The secondary ion mass spectrum (SIMS) of the extracts reveals that they contain a series of even‐numbered gigantic carbon molecules C 70+2 n (n⩾1) up to at least C 500 . The SIMS spectra exhibit a remarkably wide distribution of carbon molecules which has a broad maximum at around C 130 ‐C 150 . The possibility of the isolation of such large carbon molecules, which are possibly fullerenes, is also presented.