The impact of the lanthanide contraction on the structure of complexes of a calix[4]arene trisamide

Nealon, Gareth; Mocerino, Mauro; Ogden, Mark; Skelton, B.

doi:10.1007/s10847-009-9613-y

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Authors

Nealon, Gareth

Mocerino, Mauro

Ogden, Mark

Skelton, B.

Date

2009

Type

Journal Article

Metadata

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Citation

Nealon, G. and Mocerino, M. and Ogden, M. and Skelton, B. 2009. The impact of the lanthanide contraction on the structure of complexes of a calix[4]arene trisamide. Journal of Inclusion Phenomena and Macrocyclic Chemistry. 65: pp. 25-30.

Source Title

Journal of Inclusion Phenomena and Macrocyclic Chemistry

DOI

10.1007/s10847-009-9613-y

ISSN

09230750

School

Nanochemistry Research Institute

Remarks

The final publication is available at Springer via 10.1007/s10847-009-9613-y

URI

http://hdl.handle.net/20.500.11937/18613

Collection

Curtin Research Publications

Abstract

The syntheses of samarium, holmium, and ytterbium complexes of a tris-amide calix[4]arene are described, and the resulting structures are compared with the previously reported gadolinium complex. The syntheses involved the reaction of 5,11,17,23-tetra-tert-butyl-24-hydroxy-26,27,28- tris(diethylcarbamoylmethoxy)calix[4]arene with the appropriate lanthanide picrate hydrate. Structural studies demonstrated that a picrate anion acts as a quasi-bidentate ligand with Sm (and Gd), is unidentate in the Ho complex, but is found in the second coordination sphere for the smallest lanthanide cation (Yb) investigated.