Zegke, Markus, Groedler, Dennis, Jungfer, Maximilian Roca, Haseloer, Alexander ORCID: 0000-0003-0480-7568, Kreuter, Meike, Neudoerfl, Joerg M., Sittel, Thomas, James, Christopher M., Rothe, Joerg, Altmaier, Marcus, Klein, Axel, Breugst, Martin, Abram, Ulrich, Strub, Erik and Wickleder, Mathias S. . Ammonium Pertechnetate in Mixtures of Trifluoromethanesulfonic Acid and Trifluoromethanesulfonic Anhydride. Angew. Chem.-Int. Edit.. WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1521-3773

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Abstract

Ammonium pertechnetate reacts in mixtures of trifluoromethanesulfonic anhydride and trifluoromethanesulfonic acid under final formation of ammonium pentakis(trifluoromethanesulfonato)oxidotechnetate(V), (NH4)(2)[TcO(OTf)(5)]. The reaction proceeds only at exact concentrations and under the exclusion of air and moisture via pertechnetyl trifluoromethanesulfonate, [TcO3(OTf)], and intermediate Tc-VI species. Tc-99 nuclear magnetic resonance (NMR) has been used to study the Tc-VII compound and electron paramagnetic resonance (EPR), Tc-99 NMR and X-ray absorption near-edge structure (XANES) experiments indicate the presence of the reduced technetium species. In moist air, (NH4)(2)[TcO(OTf)(5)] slowly hydrolyses under formation of the tetrameric oxidotechnetate(V) (NH4)(4)[{TcO(TcO4)(4)}(4)] .10 H2O. Single-crystal X-ray crystallography was used to determine the solid-state structures. Additionally, UV/Vis absorption and IR spectra as well as quantum chemical calculations confirm the identity of the species.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Zegke, MarkusUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Groedler, DennisUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jungfer, Maximilian RocaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Haseloer, AlexanderUNSPECIFIEDorcid.org/0000-0003-0480-7568UNSPECIFIED
Kreuter, MeikeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Neudoerfl, Joerg M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sittel, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
James, Christopher M.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rothe, JoergUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Altmaier, MarcusUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Klein, AxelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Breugst, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Abram, UlrichUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Strub, ErikUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Wickleder, Mathias S.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-583658
DOI: 10.1002/anie.202113777
Journal or Publication Title: Angew. Chem.-Int. Edit.
Publisher: WILEY-V C H VERLAG GMBH
Place of Publication: WEINHEIM
ISSN: 1521-3773
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
TC-99 NMR-SPECTROSCOPY; TECHNETIUM COMPLEXES; CRYSTAL-STRUCTURE; TRIFLATE; COORDINATION; FLUORIDE; FACILE; ESTERS; BONDMultiple languages
Chemistry, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/58365

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