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Title

Characterization of supramolecular complexes by high resolution electrospray ionization mass spectrometry

Authors
Vilbois, Francis
Published in Rapid Communications in Mass Spectrometry. 1999, vol. 13, no. 5, p. 302-306
Abstract High resolution mass spectrometry on time-of-flight (TOF) and ion trap (IT) mass spectrometers is used for the qualitative speciation of a heterodimetallic triple-stranded helicate [EuFe(L1)3](CIO4)5 and a toroidal complex [Ni3(L2)3](CIO4)6 (= circular single-stranded helicate) dissolved in acetonitrile. The resolution of about 5000 at peak width at half height using ion trap mass spectrometry (ITMS) and time-of-flight mass spectrometry (TOFMS) combined with electrospray ionization (ESI) is sufficient to resolve sextuply charged ions leading to a straightforward characterization of the complexes in solution. The ESI-MS response is influenced by the interface design, particularly for the heated capillary interface which requires optimized conditions for the study of non-covalent complexes.
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HOPFGARTNER, Gerard, VILBOIS, Francis, PIGUET, Claude. Characterization of supramolecular complexes by high resolution electrospray ionization mass spectrometry. In: Rapid Communications in Mass Spectrometry, 1999, vol. 13, n° 5, p. 302-306. https://archive-ouverte.unige.ch/unige:2321

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Deposited on : 2009-08-04

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