S. Schmid, M. Wunderlin, E. Mena‐Osteritz, P. Bäuerle
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Copper-Templated Formation of Dihelical Oligothiophene–Phenanthroline Assemblies
We report synthesis and comprehensive characterization of a series of (oligo)thiophene-bridged (bis)phenanthroline ligands. The complexation behavior of the ditopic ligands with Cu(I) was explored by high resolution ESI mass spectrometry, UV-vis spectroscopy, and electrochemistry. Whereas ligands, in which the phenanthrolines are bridged by smaller (oli-go)thiophene units, provided mainly mononuclear complexes, quaterthiophene-based di-topic ligands show a strong tendency to undergo metal-templated self-assembly into double stranded, dinuclear helicates.
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