Efficient trinuclear Ru(ii)-Re(i) supramolecular photocatalysts for CO2 reduction based on a new tris-chelating bridging ligand built around a central aromatic ring.

ABSTRACT: We have designed and synthesized a new tris-chelating polypyridine ligand (bpy3Ph) suitable to be used as a bridging ligand (BL) for constructing various supramolecular photocatalysts. This BL is a phenylene ring with three ethylene chains at 1, 3, and 5 positions, of which the other terminals are connected to 2,2'-bipyridine moieties. The ligand bpy3Ph has been used to prepare, according to a multi-step synthetic protocol, trinuclear supramolecular photocatalysts containing different metal subunits. In particular, the compounds Ru2Re and RuRe2 have been prepared, containing different ratios of components based on Ru(dmb)3 2+-type and Re(dmb)(CO)3Cl-type units (dmb = 4,4'-dimethyl-2,2'-bipyridine), which can play the roles of photosensitizers and catalyst units for photocatalytic CO2 reduc

SUBMITTER: Cancelliere AM 

PROVIDER: S-EPMC7069366 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature