Studies of the complexation behavior of tetramorpholinylo-PNP-lariat ether with Ag(i), Ca(ii), Cd(ii), Cu(ii) and Pb(ii) using Electrospray Ionization Mass Spectrometry

In this publication the cationic metal complexes of tetramorpholinylo-PNP-lariat ether have been studied using electrospray ionization mass spectrometry (ESI-MS). The tandem mass spectra (MS/MS) of these complexes have also been tested to evaluate the stability of the different types of the complexe...

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Veröffentlicht in:New journal of chemistry 2015-01, Vol.39 (3), p.1761-1772
Hauptverfasser: Gutowska, Natalia, Pasternak, Beata, Seliger, Piotr, Andrijewski, Grzegorz
Format: Artikel
Sprache:eng
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Zusammenfassung:In this publication the cationic metal complexes of tetramorpholinylo-PNP-lariat ether have been studied using electrospray ionization mass spectrometry (ESI-MS). The tandem mass spectra (MS/MS) of these complexes have also been tested to evaluate the stability of the different types of the complexes formed. As occurred, all selected metal cations form the complexes with 1 : 1 stoichiometry with the investigated ligand. Only silver ions create a "sandwich" type complex. Furthermore, the divalent cations form complexes with the nitrate anion adduct. In the case of Ca( ii ), Cd( ii ) and Pb( ii ) we also observed another type of the species with an additional water molecule attached to the parent complex. The identification of complexes containing PNP-lariat ether with Ag( i ), Ca( ii ), Cu( ii ), Cd( ii ) and Pb( ii ) by ESI-MS technique is presented. The tandem mass spectra of these complexes were done in order to evaluate the stability of the different types of the complexes formed.
ISSN:1144-0546
1369-9261
DOI:10.1039/c4nj01904k