Size Selectivity in Heterolanthanide Molecular Complexes with a Ditopic Ligand.

ABSTRACT: The similar reactivity of lanthanides generally leads to statistically populated polynuclear complexes, making the rational design of ordered hetero-lanthanide compounds extremely challenging. Here we report on the site selectivity in hetero-lanthanide tetranuclear complexes afforded by the relatively simple ditopic pyterpyNO ligand (4'-(4-pyridil)-2,2':6',2"-terpyridine N-oxide). The sequential room temperature reaction of RE₂ (tta)₆ (pyterpyNO)₂ (where RE=Y, (1); Eu, (2), Dy, (3) Htta=2-thenoyltrifluoroacetone) with La(tta)₃ dme (dme=dimethoxyethane) yielded Y₂ La₂ (tta)₁₂ (pyterpyNO)₂ (4), Dy₂ La₂ (tta)₁₂ (pyterpyNO)₂ (5) and Eu₂ La₂ (

SUBMITTER: Bellucci L 

PROVIDER: S-EPMC10100000 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature