Congratulations to our PhD student Marco Bazi for the recent scientific publication entitled “Mononuclear Rare-Earth Metalloligands Exploiting a Divergent Ligand” in Inorganic Chemistry. Seven Rare-Earth compounds with formula [RE(dike)3pyterpy] were synthesized using the divergent ligand “pyterpy” and two different ancillary ligands (dike= tta with Htta = 2-thenoyltrifluoroacetone or dike = hfac with Hhfac hexafluoroacetylacetone).
Their structures were determined by XRD and multinuclear NMR spectroscopy, techniques that have clarified that the pyridine moiety of the divergent ligand is not involved in any significant bonding interaction. These compounds can behave as ligands forming heterometallic complexes. Five new Pt/RE heterometallic complexes with formula [RE(dike)3pyterpyPtCl2PPh3] were synthesized in mild conditions by breaking the chloro-bridged dinuclear structure of [PtCl(µ-Cl)PPh3]2. On the contrary, the marked preference of dipositive d-transition metals for [Mpyterpy2]2+ cations drives the reactivity of[RE(dike)3pyterpy] with [M(dike)2dme] toward the scrambling of ligands. An alternative route to a whole family of heterometallic ionic complexes has been consistently developed reacting [M(dike)2dme] with 2 equiv of pyterpy and successively with 2 equiv of [RE(dike)3(dme)].
The paper is available at the following link: https://doi.org/10.1021/acs.inorgchem.3c04532
