BODIPY (4,4-difluoro-4-bora-3a,4a-diaza-s-indacenes) dyes possess intense absorption profiles that can be exploited in various light harvesting applications. However, redox stability and optimization of frontier molecular orbital energies in these dyes are critical for their successful incorporation into new solar cell materials. This article describes the synthesis and characterization of a family of β-substituted BODIPY-ferrocene dyads with push-pull architectures. Designed to stabilize the photo-oxidized BODIPY for dye-sensitized solar cell (DSSC) applications, some deleterious electron transfer behaviours emerged when the ferrocene unit was conjugated to electron deficient BODIPYs. These findings are discussed herein.
A palladium complex of a newly prepared NN′N′′‐pincer ligand proves as an active catalyst for the allylation of benzaldehydes by allyltributylstannane.
A simple modular approach is presented which has been directed towards the synthesis of potentially monoanionic NN′N′′, NN′C, and NN′P pincer-type ligands. These pincers incorporate an amide functionality derived from the skeletal structure of readily available 2-(2aminophenyl)-4,5-dioxooxazoles. All of the pincers are synthesized in moderate yields (up to 74%) and are characterised by nuclear magnetic spectroscopy (NMR), elemental analyses, and infrared (IR) spectroscopy. X-ray crystallography is also performed on the chiral and achiral alkyl halide precursors and on an oxide derivative of a pincer with a NN′Patom donor set. A palladium derivative of one of the NN′N′′-pincers is shown to be an active catalyst for the addition of an allyl group to various benzaldehydes using n-Bu 3 Sn(allyl) as allyl source.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.