نتایج جستجو برای: polypyridyl
تعداد نتایج: 477 فیلتر نتایج به سال:
A series of inert tri- and tetra-nuclear polypyridylruthenium(II) complexes that are linked by the bis[4(4'-methyl-2,2'-bipyridyl)]-1,n-alkane ligand ("bb(n)" for n = 10, 12 and 16) have been synthesised and their potential as antimicrobial agents examined. Due to the modular nature of the synthesis of the oligonuclear complexes, it was possible to make both linear and non-linear tetranuclear r...
A series of Ru-(II) polypyridyl complexes, containing carboxylicand sulphonic ‘anchor’ groups, were synthesized as sensitizers for nanocrystalline TiO2. Depending on number and type of ligands the sensitizers are divided into three classes: tris-homoleptic complexes 1a–d, tris-heteroleptic complexes 2a–d and bis-complexes 3a–f. The compounds were characterized and the photophysical and electroc...
Photoredox chemical reactions induced by visible light have undergone a renaissance in recent years. Polypyridyl dyes such as Ir(ppy)3 and Ru(bpy)3 are key catalysts in this event, and blue- or white-light irradiation is required for the chemical transformations. However, it remains a challenge to achieve reactions under the lower energy of red light. We disclose, herein, that trifluoroethoxy-c...
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