dc.contributor.author
Sawallisch, Till Erik
dc.contributor.author
Abdulkader, Abdullah
dc.contributor.author
Nowak, Domenik
dc.contributor.author
Hagenbach, Adelheid
dc.contributor.author
Abram, Ulrich
dc.date.accessioned
2024-08-29T10:35:58Z
dc.date.available
2024-08-29T10:35:58Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/44729
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-44440
dc.description.abstract
The very limited number of structurally known thionitrosyl complexes of technetium was increased by the synthesis of [TcII(NS)Cl3(PPh3)2] (3) and [TcII(NS)Cl3(PPh3)(OPPh3)] (4) and their reaction products with hydrotris(pyrazolyl)borates, {HB(pzR)3}−. Similar reactions were conducted with [TcI(NO)Cl2(PPh3)2(CH3CN)] and related rhenium thionitrosyls. Remarkably, most such reactions result in a rapid cleavage of the boron–nitrogen bonds of the ligands and the formation of pyrazole complexes of the two group 7 metals. Only one compound with an intact {HB(pzR)3}− ligand could be isolated: the technetium(I) complex [TcI(NO)Cl(PPh3){HB(pz)3}] (2). Other products show the coordination of one or four neutral pyrazole ligand(s) in the coordination spheres of technetium generated by thermal decomposition of the pyrazolylborates [TcI(NO)Cl2(PPh3)2(pzH)] (1) and [TcI(NS)Cl(pzHMe2)4]+ (5). Reactions with the corresponding thionitrosylrhenium complex [ReII(NS)Cl3(PPh3)2] require higher temperatures and only compounds with one pyrazole ligand, [ReI(NS)Cl2(PPh3)(pzHR)] (6a–6c), were isolated. The products were studied spectroscopically and by X-ray diffraction.
en
dc.format.extent
18 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
nitrosyl complexes
en
dc.subject
thionitrosyl complexes
en
dc.subject
pyrazolylborates
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften
dc.title
Nitrosyl and Thionitrosyl Complexes of Technetium and Rhenium and Their Reactions with Hydrotris(pyrazolyl)borates
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
3865
dcterms.bibliographicCitation.doi
10.3390/molecules29163865
dcterms.bibliographicCitation.journaltitle
Molecules
dcterms.bibliographicCitation.number
16
dcterms.bibliographicCitation.originalpublishername
MDPI
dcterms.bibliographicCitation.volume
29
dcterms.bibliographicCitation.url
https://doi.org/10.3390/molecules29163865
refubium.affiliation
Biologie, Chemie, Pharmazie
refubium.affiliation.other
Institut für Chemie und Biochemie
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refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
1420-3049