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 |
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Hauptverfasser: | , , , |
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. |
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ISSN: | 1144-0546 1369-9261 |
DOI: | 10.1039/c4nj01904k |