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Synthesis, characterization, and POM-protein interactions of a Fe-substituted Krebs-type Sandwich-tungstoantimonate

Authors
  • Tanuhadi, Elias
  • Kampatsikas, Ioannis
  • Giester, Gerald
  • Rompel, Annette
Type
Published Article
Journal
Monatshefte für Chemie - Chemical Monthly
Publisher
Springer Vienna
Publication Date
Apr 29, 2019
Volume
150
Issue
5
Pages
871–875
Identifiers
DOI: 10.1007/s00706-019-2381-5
Source
Springer Nature
Keywords
License
Green

Abstract

AbstractThe novel iron-substituted Krebs-type polyoxotungstate (C12N4H11)4Na2H5[(Fe(H2O)3)2((FeO2)0.5(WO2)0.5)2(β-SbW9O33)2] (Fe-1) has been synthesized using ortho-phenylenediamine (opda) as a precursor for the in situ formation of the counter cation 2,3-diaminophenazinium (C12N4H11)+ (2,3-DAP). Fe-1 has been thoroughly characterized in the solid state by single-crystal X-ray diffraction (SXRD), powder X-ray diffraction (PXRD), IR spectroscopy, and elemental analysis as well as in solution by UV–Vis spectroscopy. The crystal structure of Fe-1 reveals π–π-interactions between the aromatic systems of the unconventional 2,3-DAP counter cation. POM-protein interaction studies using SDS-PAGE revealed a non-proteolytic behavior of Fe-1 towards Human Serum Albumin (HSA) as a model protein.Graphical abstract

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