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Rhenium and technetium complexes from pentadentate (N3O2) and tetradentate (N2O2) Schiff base ligands

TitleRhenium and technetium complexes from pentadentate (N3O2) and tetradentate (N2O2) Schiff base ligands
Publication TypeJournal Article
Year of Publication1995
AuthorsLuo, HY, Liu, S, Rettig, SJ, Orvig, C
JournalCanadian Journal of Chemistry-Revue Canadienne De Chimie
Volume73
Pagination2272-2281
Date PublishedDec
Type of ArticleArticle
ISBN Number0008-4042
KeywordsAMINE PHENOL LIGANDS, ATOM TRANSFER-REACTIONS, CRYSTAL-STRUCTURES, dehydroacetic acetate based Schiff base ligands, N2O2 Schiff base, N3O2 Schiff base, OXO-COMPLEXES, oxygen transfer, rhenium, technetium, X-ray structures
Abstract

{The rhenium(V) and technetium(V) complexes: [ReO(apa)], [{ReO(epa)}O-2], and [TcOCl(epa)] have been prepared from a potentially pentadentate N3O2 ligand, N,N’-3-azapentane-1,5-diylbis(3-(1-iminoethyl)-6-methyl-2H-pyran-2,4(3H) -dione) (H(3)apa), or a potentially tetradentate N2O2 ligand, N,N’-ethylene-diylbis(3-(1-iminoethyl)-6-methyl-2H-pyran-2,4 (3H)-dione) (H(2)epa). The N2O2 complexes were synthesized in low yields. There was also evidence indicating that H(2)ppa, N,H’-propylene-diylbis(3-(1-iminoethyl)-6-methyl-2H-pyran- 2,4(3H)-dione), hydrolyzed in the course of coordination, forms a rhenium complex of the bidentate monoprotic (O,O) dehydroacetate (dha(-)), [Re(dha)Cl-2(OPPh(3))(PPh(3))]. EtOH. The structure of this complex was determined by X-ray crystallography. Crystals of [Re(dha)Cl-2(OPPh(3))(PPh(3))]. EtOH (C44H37Cl2O5P2Re . C2H6O) are monoclinic

URL<Go to ISI>://A1995TV23200022