Identifizierung der Grenze zwischen den Strukturmotiven von [Ln(18-Krone-6)(NO3)3] und [Ln(NO3)3(H2O)3] · 18-Krone-6 in der Lanthanoiden-Reihe

Translated title of the contribution: Identification of the structural boundary between [Ln(18-crown-6)(NO3)3] and [Ln(NO3)3(H2O)3] · 18-crown-6 motifs in the lanthanide series

Cameron Jones, Peter C. Junk, Matthew K. Smith, Ryan C. Thomas

Research output: Contribution to journalArticleResearchpeer-review

24 Citations (Scopus)

Abstract

Recrystallization of Ln(NO3)3 (Ln = Sm, Eu, Yb) in the presence of 18-crown-6 under aqueous conditions yielded [Ln(NO3)3(H2O)3] · 18-crown-6. X-ray crystallography revealed isomorphous structures for each of the lanthanide complexes where [Ln(NO3)3(H2O)3] is involved in hydrogen bonding interactions with 18-crown-6. The transition point where the structural motif changes from [Ln(18-crown-6)(NO3)3] (with the metal residing in the crown cavity) to [Ln(NO3)3(H2O)3] · 18-crown-6 has been identified as at the Nd/Sm interface. A similar investigation involving [Ln(tos)3(H2O)6] (tos = p-toluenesulfonate) and 18-crown-6 were resistant to crown incorporation. X-ray studies show extensive intra-and intermolecular hydrogen bonding is present.

Translated title of the contributionIdentification of the structural boundary between [Ln(18-crown-6)(NO3)3] and [Ln(NO3)3(H2O)3] · 18-crown-6 motifs in the lanthanide series
Original languageGerman
Pages (from-to)2491-2497
Number of pages7
JournalZeitschrift fuer Anorganische und Allgemeine Chemie
Volume626
Issue number12
DOIs
Publication statusPublished - 1 Jan 2000

Keywords

  • Crystal structures
  • Europium
  • Lanthanide complexes
  • Samarium
  • Ytterbium

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