Issue 27, 2021

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

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.

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

Supplementary files

Article information

Article type
Paper
Submitted
01 Febr. 2021
Accepted
18 Jūn. 2021
First published
18 Jūn. 2021

Dalton Trans., 2021,50, 9648-9654

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

Y. Jiao, S. Sarwar, S. Sanz, J. van Leusen, N. V. Izarova, C. L. Campbell, E. K. Brechin, S. J. Dalgarno and P. Kögerler, Dalton Trans., 2021, 50, 9648 DOI: 10.1039/D1DT00359C

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