We report on the structural design and characterization of a series of neutral heteroleptic iridium(III) complexes equipped with 2-phenylpyridine, 2-(naphthalen-1-yl)pyridine, and 1-phenylisoquinoline as cyclometalating ligands. To gradually increase the unsymmetrical architecture of the heteroleptic iridium(III) complexes, they have been furnished with 2,2,6,6-tetramethylheptane-3,5-dione, 1-(9H-carbazol-9-yl)-5,5-dimethylhexane-2,4-dione, and 1-[3,6-bis(4-hexylphenyl)-9H-carbazol-9-yl]-5,5-dimethylhexane-2,4-dione as ancillary ligands. The photophysical and electrochemical properties of these asymmetric Ir III complexes have been investi-
The controlled polymerization of the unprotected, commercially available, 4-vinylphenylboronic acid (4-VBA) monomer is reported by nitroxide mediated polymerization. The glucose responsive pH window of poly(4-VBA) is reported based on turbidimetry. Finally, poly(4-VBA) polymeric pH sensors have been developed by the incorporation of solvatochromic dyes
Imidazolium salts react with HgO to give mono-NHC dihalomercury(II) complexes in acceptable yields. The solid-state structures of several examples were determined by X-ray diffraction. The complexes consist of monomeric (NHC)HgX2 units, which feature tricoordinated mercury atoms, a structural arrangement rarely found for mercury compounds.
We report a facile grafting-from strategy towards the synthesis of inorganic-organic composites of semiconductor nanocrystals and wide-bandgap polymers. Amino-functional fluorenes have been used as co-ligands for CdSe nanocrystals, thus enabling us to design their surface directly during the synthesis. Highly monodisperse, strongly emitting CdSe nanocrystals have been obtained. Subsequently, a straightforward Yamamoto C-C coupling protocol was used to carry out surface polymerisation, hence modifying CdSe nanocrystals with oligo-and poly(fluorene) moieties. Both amino-fluorene capped CdSe nanocrystals and the resulting nanocrystal-polymer composites were characterized in detail by optical and FT-IR spectroscopy, TEM, AFM, and gel permeation chromatography, showing their potential as novel functional inorganic-organic hybrid materials.
The design, synthesis, photophysical and significantly improved electrooptical properties of a series of red emitting cyclometalated iridium(iii) complexes containing carbazolyl-acetylacetonate ligands are described.
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.