Exploiting complementary ligands for the construction of square antiprismatic monometallic lanthanide SMMs

Yushu Jiao, Sidra Sarwar, Sergio Sanz, Jan van Leusen, Natalya V. Izarova, Cameron L. Campbell, Euan K. Brechin, Scott J. Dalgarno, Paul Kögerler

Research output: Contribution to journalArticlepeer-review

Abstract

The methylation of p-tert-butylcalix[4]arene in the distal 1,3-phenolic sites provides the ligand H2L = {p-tert-butylcalix[4](OMe)2(OH)2arene} that enables construction of heteroleptic mononuclear lanthanide complexes. The reaction of (N(nBu)4)(acac) (Hacac = acetylacetone), MIIICl3 and H2L under Schlenk conditions results in the formation of a family of (N(nBu)4)[MIIIL(acac)2] complexes where M = Y (1), Gd (2), Tb (3) and Dy (4). The metal ions are eight-coordinate in distorted square-antiprismatic coordination geometries, resulting in slow relaxation of the magnetisation for the Tb derivative.

Original languageEnglish
Pages (from-to)9648-9654
Number of pages7
JournalDalton Transactions
Volume50
Issue number27
Early online date18 Jun 2021
DOIs
Publication statusPublished - 21 Jul 2021

ASJC Scopus subject areas

  • Inorganic Chemistry

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