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Complexation of late transition metal(II) ions (M = Co, Ni, Cu, and Zn) by a macrocyclic thiacrown ether studied by means of electrospray ionization mass spectrometry by Nikos G. Tsierkezos; Michal Buchta; Petr Holý; Detlef Schröder is a Chemistry article available to read on EtoBox.

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## Abstract Electrospray ionization mass spectrometry (ESI‐MS) is used to probe the metal‐binding selectivity of a macrocyclic thiacrown ether (C~44~H~32~S~20~) towards Co^II^, Ni^II^, Cu^II^, and Zn^II^. In homogeneous 1:1 v/v methanol/dichloromethane solutions, it is found that the thia ligand very selectively binds traces of copper even in the presence of an excess of the other metal ions. The large selectivity is ascribed to the redox‐active nature of copper which enables a reduction from Cu^II^ to Cu^I^, occurring upon ESI‐MS, whereas Co^II^, Ni^II^ and Zn^II^ cannot undergo similar redox reactions. Copyright © 2009 John Wiley & Sons, Ltd.

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Author

Nikos G. Tsierkezos; Michal Buchta; Petr Holý; Detlef Schröder

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0951-4198)

Published

2009

Language

EN

Field

Chemistry (Physical Sciences)