In: Chemistry - A European Journal, 2005, vol. 11, p. 185-194
Detailed protonation experiments of the [5,6]-pinenebipyridine molecule and the unsubstituted [4,5]- and [5,6]-CHIRAGEN[0] ligands in various solvents indicate a variety of structures of the protonated species. UV-visible and NMR measurements (including ¹⁵N chemical shifts) show the transition from trans to cis conformation of [5,6]-pinenebipyridine upon protonation. The...
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In: Inorganica Chimica Acta, 2005, vol. 358(1), p. 41-49
A series of ligands, where two pinene-bipyridine moieties are either connected directly, or through a p-xylene bridge are investigated with respect to their complexation behaviour in solution. The bridged [5,6]-CHIRAGEN[p-xyl] ligands, which are substituted in 5' or 6' positions show self-assembly reactions, which lead to similar supramolecular species as the unsubstituted bis-pinene-bipyridines...
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Thèse de doctorat : Université de Fribourg, 2002 ; Nr. 1382.
Im Rahmen der vorliegenden Arbeit wurden neue enantiomerenreine 5’- und 6’- substituierte, mit Pinen annellierte Bipyridin- (Pinen-bpy Derivate) und N-Pyridin- Liganden (Pinen-N-py Derivate) hergestellt. Die 6’-Brom substituierten Pinen-bpy Derivate stellen dabei geeignete Zwischenstufen für die Synthese von weiteren 6’- substituierten Pinen-bpy Derivate dar. Tetradentate Liganden...
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