Jump to main content
Jump to site search

Issue 17, 2003
Previous Article Next Article

Calixarenes as aryloxides: oligonuclear europium(III) derivatives

Author affiliations

Abstract

Synthetic and structural studies of europium complexes of calix[8]arene, p-t-Bu-calix[7]arene and p-t-Bu-calix[9]arene are reported. The complex [Eu2(calix[8]arene-6H)(dmso)5] was found to have a similar structure to previously reported p-t-Bu- and p-nitro-calix[8]arene complexes of the lanthanides. Despite being prepared under similar conditions, the complex of p-t-Bu-calix[7]arene was found to be a tetranuclear assembly, formulated as [(HO)2(OCO2)Eu4(p-t-Bu-calix[7]arene-4H)2(dmso)6]. Expanding the ligand to p-t-Bu-calix[9]arene resulted in the isolation of a larger oligonuclear assembly, [(HO)9(H2O)2Eu7(p-t-Bu-calix[9]arene-6H)2(dmso)6]. In contrast to the consistent structural type found with the calix[8]arene system, however, use of a different solvent (acetone) gave rise to a much simpler species, [Eu2(p-t-Bu-calix[9]arene-3H)2(dmso)4].

Graphical abstract: Calixarenes as aryloxides: oligonuclear europium(iii) derivatives

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 May 2003, accepted on 30 Jun 2003 and first published on 18 Jul 2003


Article type: Paper
DOI: 10.1039/B305041F
Citation: Dalton Trans., 2003,0, 3319-3327
  •   Request permissions

    Calixarenes as aryloxides: oligonuclear europium(III) derivatives

    S. Fleming, C. D. Gutsche, J. M. Harrowfield, M. I. Ogden, B. W. Skelton, D. F. Stewart and A. H. White, Dalton Trans., 2003, 0, 3319
    DOI: 10.1039/B305041F

Search articles by author

Spotlight

Advertisements