The influence of phenylated by-products on the MALDI analysis of chlorinated fullerenes

Chlorinated [60]fullerenes which have been prepared by a variety of different synthetic methods have been studied by means of direct laser desorption/ionisation (LDI), matrix-assisted laser desorption/ionisation (MALDI) and desorption electron ionisation (DEI) mass spectrometry. The aim of this inve...

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Bibliographic Details
Published in:International journal of mass spectrometry 2003-08, Vol.228 (2), p.979-984
Main Authors: Vasil’ev, Yury V., Streletskiy, Alexey V., Kuvychko, Igor V., Boltalina, Olga V., Birkett, Paul R., Campbell, Eleanor E.B., Korobov, Mikhail V., Drewello, Thomas
Format: Article
Language:English
Subjects:
Chlorinated fullerenes
LDI
MALDI
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Summary:Chlorinated [60]fullerenes which have been prepared by a variety of different synthetic methods have been studied by means of direct laser desorption/ionisation (LDI), matrix-assisted laser desorption/ionisation (MALDI) and desorption electron ionisation (DEI) mass spectrometry. The aim of this investigation has been the elucidation of the unusual signal sequence observed in earlier positive-ion MALDI experiments, which featured a spacing of 77 Da between the signals of fullerene-containing ions. Circumstantial evidence has been provided, which strongly indicates that the 77 Da correspond to a C 6H 5 (phenyl) ligand. The findings reveal that phenylated by-products that result from the use of benzene during synthesis may be of strong influence on the physico-chemical characterisation of chlorinated C 60.
ISSN:1387-3806
1873-2798
DOI:10.1016/S1387-3806(03)00265-3