Heterotrimetallic {LnOVPt} complexes with antiferromagnetic Ln-V coupling and magnetic memory

Stephanie A Beach; Jesse L Guillet; Sydney P Lagueux; Mauro Perfetti; Brooke N Livesay; Matthew P Shores; Jeffrey W Bacon; Arnold L Rheingold; Polly L Arnold; Linda H Doerrer

doi:10.1039/d0cc04334f

Heterotrimetallic {LnOVPt} complexes with antiferromagnetic Ln-V coupling and magnetic memory

Chem Commun (Camb). 2020 Sep 22;56(75):11062-11065. doi: 10.1039/d0cc04334f.

Affiliations

¹ Boston University, Department of Chemistry, 590 Commonwealth Ave, Boston, MA 02215, USA.
² Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark.
³ Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA.
⁴ University of California, San Diego Department of Chemistry and Biochemistry, La Jolla, CA 92093, USA.
⁵ University of Edinburgh Joseph Black Building, David Brewster Road, Edinburgh, EH9 3FJ, UK.

PMID: 32812571
DOI: 10.1039/d0cc04334f

Abstract

The new PtVO(SOCR)4 lantern complexes, 1 (R = CH3) and 2 (R = Ph) behave as neutral O-donor ligands to Ln(OR)3 with Ln = Ce, Nd. Four heterotrimetallic complexes with linear {LnOVPt} units were prepared: [Ln(ODtbp)3{PtVO(SOCR)4}] (Ln = Ce, 3Ce (R = CH3), 4Ce (R = Ph); Nd, 3Nd (R = CH3), 4Nd (R = Ph); ODtbp = 2,6-ditertbutylphenolate). Magnetic characterization confirms slow magnetic relaxation behaviour and suggests antiferromagnetic coupling across {Ln-O[double bond, length as m-dash]V} in all four complexes, with variations tunable as a function of Ln and R.