Oxotechnetium(V) Complexes with a Novel Class of Tridentate Thiosemicarbazide Ligands

A novel tridentate thiosemicarbazide-type ligand class with an SNS donor set, H2L1, was prepared by reactions of N-[N′,N′-dialkylamino(thiocarbonyl)]benzimidoyl chlorides with thiosemicarbazides. H2L1 ligands readily react with (NBu4)[TcOCl4] in MeOH under the formation of red oxotechnetium(V) compl...

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Bibliographic Details
Published in:Inorganic chemistry 2009-01, Vol.48 (1), p.25-27
Main Authors: Nguyen, Hung Huy, Maia, Pedro I. da S, Deflon, Victor M, Abram, Ulrich
Format: Article
Language:English
Subjects:
Ligands
Models, Molecular
Molecular Conformation
Organotechnetium Compounds - chemistry
Semicarbazides - chemistry
Thiourea - chemistry
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Summary:A novel tridentate thiosemicarbazide-type ligand class with an SNS donor set, H2L1, was prepared by reactions of N-[N′,N′-dialkylamino(thiocarbonyl)]benzimidoyl chlorides with thiosemicarbazides. H2L1 ligands readily react with (NBu4)[TcOCl4] in MeOH under the formation of red oxotechnetium(V) complexes of composition [TcOCl(L1)]. The monomeric, five-coordinate compounds are air-stable and bind (L1)2− tridentate in the equatorial coordination sphere. The compounds represent the first examples of oxotechnetium(V) complexes with NS chelate-bonded thiosemicarbazones.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic802044r