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Updated: Feb 22, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
Integrative Self-Sorting of Bipyridinium/Diazapyrenium-Based Ligands into Pseudo[1]rotaxanes
Tamara Rama1, Arturo Blanco-Gómez1, Iago Neira1
1Departamento de Química and Centro de Investigacións Científicas Avanzadas (CICA), Facultade de Ciencias, Universidade da Coruña, 15071, A, Coruña, Spain.
Abstract:
We present here the design and synthesis of a series of multicomponent supramolecular architectures, structures formed by the PdII /PtII -directed integrative social self-sorting in aqueous media of pairs of complementary N-monoalkyl-4,4'-bipyridinium/2,7-diazapyrenium-based ligands. Out of the different potential outcomes of the processes, we have found out how the designed systems selectively enhance the production of pseudo[1]rotaxanes, hermaphroditic host-guest aggregates that maximize the strength of the occurring π-π, C-H⋅⋅⋅π, and hydrophobic interactions, as well as the number of those interactions per receptor. It is also demonstrated how both integrative social and narcissistic PdII -directed self-sorting can occur orthogonally and concomitantly for this type of ditopic ligands.
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