Steric control of the formation of dinuclear double helicate and dinuclear meso-helicate assemblies.
نویسندگان
چکیده
We describe a ligand system that forms either a dinuclear double helicate or a dinuclear double mesocate dependent upon the size of the metal ion or the steric bulk of the ligand strand.
منابع مشابه
Controlling the formation of metallosupramolecular assemblies by metal ionic radiiw
Controlling the structure of multi-component assemblies is one of the leading challenges for the supramolecular chemist. One of the simplest assemblies is the dinuclear doublestranded helicate, and the rules that govern the formation of this species are largely established. The formation of the helicates’ higher nuclearity cousin, the cyclic helicate, is conversely less well understood. One of ...
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A series of ligands that contain both N-donor and N-oxide donor atoms have been synthesised and ligands L5, L6, L7 and L8 contain, 4, 6, 5, and 6 donor atoms respectively. The smallest ligand L5 forms a mononuclear complex with Cu2+ ([Cu(L5)(ClO4)2(MeCN)]) whereas L6 and L7 form dinuclear double helicates with Ni2+ and Cu2+ respectively ([Ni2(L6)2]4+ and [Cu2(L7)2]4+). L8 forms a tetranuclear c...
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عنوان ژورنال:
- Chemical communications
دوره 49 71 شماره
صفحات -
تاریخ انتشار 2013