A Systematic Exploration of Rare-earth-p-halobenzoic acid-terpyridine Materials: Structural and Supramolecular Trends in Three Series of Molecular Complexes synthesized via Hydrothermal Methods

摘要

Rare-earth hybrid materials have desirable properties,such as luminescence and magnetism for use in luminescent probes' and single molecule magnets2, which provide ample incentive for solid-state materials research. Previous efforts within our group to explore rare-earth containing metal-organic hybrid materials have been successful, aided by the use terpyridine as a 'capping' ligand to control oligomerization and as a luminescent antenna for sensitized emission.3"5 The work presented herein is the culmination of three distinct series of rare-earth p-halobenzoic acid-terpyridine materials where solid-state samples of sixty complexes were structurally characterized with single crystal and powder X-ray diffraction techniques. Each series of materials presented were synthesized with different p-halobenzoic acid ligands (p-chloro, p-bromo, p-iodo) and structural and supramolecular trends between the three series of materials were analysed.3-5