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Updated: May 3, 2026
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
Published on: July 27, 2022
Narcissistic self-sorting vs. statistic ligand shuffling within a series of phenothiazine-based coordination cages
Marina Frank1, Lennard Krause, Regine Herbst-Irmer
1Institut für Anorganische and Chemie, Georg-August Universität Göttingen, Tammannstr. 4, 37077, Göttingen, Germany. gclever@gwdg.de.
Abstract:
Previously, we introduced a series of anion-binding interpenetrated double-cages based on phenothiazine and its mono- and di-S-oxygenated derivatives. Here, we complete the structural comparison of the three related assemblies by an X-ray single crystal analysis of the sulfone derivative. We further show that the three palladium cages coexist in solution upon post-assembly mixing due to the very slow ligand exchange whereas treatment of binary mixtures of the corresponding ligands with Pd(II) leads to the formation of mixed cages comprising a statistical ligand distribution. In contrast, mixtures of one of these ligands with a shorter ligand derivative lead to narcissistic self-assembly into a double-cage and a coexisting small monomeric cage, regardless of the order of mixing and Pd(II) addition.
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