Oxotechnetium(V) complexes with a novel class of tridentate thiosemicarbazide ligands

Hung Huy Nguyen; Pedro I da S Maia; Victor M Deflon; Ulrich Abram

doi:10.1021/ic802044r

Oxotechnetium(V) complexes with a novel class of tridentate thiosemicarbazide ligands

Inorg Chem. 2009 Jan 5;48(1):25-7. doi: 10.1021/ic802044r.

Authors

Hung Huy Nguyen¹, Pedro I da S Maia, Victor M Deflon, Ulrich Abram

Affiliation

¹ Institute of Chemistry and Biochemistry, Freie Universitat Berlin, Fabeckstrasse 34-36, D-14195 Berlin, Germany.

PMID: 19053242
DOI: 10.1021/ic802044r

Abstract

A novel tridentate thiosemicarbazide-type ligand class with an SNS donor set, H(2)L(1), was prepared by reactions of N-[N',N'-dialkylamino(thiocarbonyl)]benzimidoyl chlorides with thiosemicarbazides. H(2)L(1) ligands readily react with (NBu(4))[TcOCl(4)] in MeOH under the formation of red oxotechnetium(V) complexes of composition [TcOCl(L(1))]. The monomeric, five-coordinate compounds are air-stable and bind (L(1))(2-) tridentate in the equatorial coordination sphere. The compounds represent the first examples of oxotechnetium(V) complexes with NS chelate-bonded thiosemicarbazones.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Ligands
Models, Molecular
Molecular Conformation
Organotechnetium Compounds / chemistry*
Semicarbazides / chemistry*
Thiourea / chemistry

Substances

Ligands
Organotechnetium Compounds
Semicarbazides
thiosemicarbazide
Thiourea