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Self‐assembly and Cycling of a Three‐state Pd x L y Metallosupramolecular System
Author(s) -
Preston Dan,
Inglis Amanda R.,
Crowley James D.,
Kruger Paul E.
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201901238
Subject(s) - stoichiometry , dimer , pyridine , monomer , chemistry , ligand (biochemistry) , cycling , crystallography , receptor , polymer , organic chemistry , biochemistry , archaeology , history
The use of stimuli to induce reversible structural transformations in metallosupramolecular systems is of keen interest to chemists seeking to mimic the way that Nature effects conformational changes in biological machinery. While a wide array of stimuli have been deployed towards this end, stoichiometric changes have only been explored in a handful of examples. Furthermore, switching has generally been between only two distinct states. Here we use a simple 2‐(1‐(pyridine‐4‐methyl)‐1 H ‐1,2,3‐triazol‐4‐yl)pyridine “click” ligand in combination with Pd II in various stoichiometries and concentrations to quantitatively access and cycle between three distinct species: a [PdL 2 ] 2+ monomer, a [Pd 2 L 2 ] 4+ dimer, and a [Pd 9 L 12 ] 18+ cage.