Synthesis, NMR, relaxometry and circularly polarised luminescence studies of macrocyclic monoamidetris(phosphinate) complexes bearing a remote chiral centre

Silvio Aime, Mauro Botta, Rachel S. Dickins, Christine L. Maupin, David Parker, James P. Riehl, J. A.Gareth Williams

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

Lanthanide complexes of macrocyclic monoamidetris(phosphinate) ligands are partially hydrated in aqueous solution. Introduction of a chiral centre into the amide group leads to the formation of only two non-interconverting complex diastereoisomers (2:1 for α-phenylethyl and 4:1 for α-1-naphthylethyl). Proton, 31P NMR and circularly polarised luminescence studies indicated that the configuration at the chiral carbon centre determines the helicity of the layout of the pendent arms and the macrocyclic ring conformation, with an RRR or SSS configuration preferred at the phosphorus centres.

Lingua originaleInglese
pagine (da-a)881-892
Numero di pagine12
RivistaJournal of the Chemical Society. Dalton Transactions
Numero di pubblicazione6
DOI
Stato di pubblicazionePubblicato - 21 mar 1998
Pubblicato esternamente

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