Group I cation templated formation of luminescent mono- and bis-substituted thionaphthol heterobimetallic complexes of Pr, Nd, Eu and Tb

Louise S. Natrajan, Alexander J. Blake, Claire Wilson, Julia A. Weinstein, Polly L. Arnold

Research output: Contribution to journalArticlepeer-review

Abstract

Metathesis of lanthanide tris di-tert-butyl beta-diketonates ([Ln(thd)(3)] Ln = Pr, Nd, Eu, Tb) with one or two equivalents of group 1 salts of the sulfur bridged binaphtholate dianion [1,1'-S(2-OC10H4But (2)- 3,6)(2)](2-), [M2L], M = K, Li affords luminescent mono-and bis-ligand substituted complexes ML[LnL(thd)(2)]. L; M = K, Ln = Pr 1, Nd 2, Eu 3 and Tb 4 ( L = thf, diethyl ether or toluene) and M(thf)(2)[LnL(2)(thd)]; M = Li, Ln = Pr 5, Nd 6, Eu 7, Tb 8. The potassium salt [K2L] affords mono-L substituted complexes most cleanly, while the lithium salt [Li2L] yields the bis-L substituted complexes most cleanly. The L ligands function as antenna for the sensitised lanthanide-centred emission in Eu3+ and Tb3+ complexes. The X-ray single-crystal structures of mono- and bis-L lanthanide complexes of Nd3+ are presented.

Original languageEnglish
Pages (from-to)4465-4473
Number of pages9
JournalDalton Transactions
Issue number37
DOIs
Publication statusPublished - 2006

Keywords

  • TRIPLE-HELICAL COMPLEXES
  • LANTHANIDE COMPLEXES
  • ALKALI-METAL
  • X-RAY
  • PHOTOPHYSICAL PROPERTIES
  • NAPHTHYL CHROMOPHORES
  • BINAPHTHOLATE LIGANDS
  • METHYL-METHACRYLATE
  • MACROCYCLIC LIGANDS
  • DINUCLEAR COMPLEXES

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