The polymerization mechanism of 2-vinylpyridine catalyzed by cationic yttrium complexes with diverse ancillary ligands, specifically Y-1, Y-2, and Y-3, was studied using density functional theory (DFT) calculations.
Dinuclear syn-Hf2 exerts an unexpected stereospecificity toward propylene polymerization and affords ultra-high molecular weight atactic polypropylene as a thermoplastic elastomer.
Two ionic, cavity-containing, water-soluble resorcinarenes are shown to bind to and enhance the aqueous solubility of three hydrophobic drugs: isoniazid, caffeine, and griseofulvin. The macrocycles are non-toxic at experimental concentrations.
Six clamshell diplatinum(II) complexes with a formula of [Pt(TBPCH)(N^N)]2 bearing both a carbazole-pyrimidine chelate and a N^N bridge, (TBPCH2 = 3,6-di-tert-butyl-9-(pyrimidin-2-yl)-9H-carbazole), have been prepared by utilizing TBPCH2 (C^N) as the primary ligand and N^N as the bridging ligand.
Isocyanide-appended azo derivatives have been designed as photoactive building blocks in assembly reactions; the rotation/inversion mechanistic tuning of the thermal cis-to-trans isomerisation has been analysed.