Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 14, Issue 8, Pages 1136-1142Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201801132
Keywords
molecular recognition; metallo-ligands; palladium(II); platinum(II); - interactions
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Funding
- University of Otago
- MacDiarmid Institute for Advanced Materials and Nanotechnology
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Molecular recognition continues to be an area of keen interest for supramolecular chemists. The investigated [M(L)(2)](2+) metallo-ligands (M=Pd-II, Pt-II, L=2-(1-(pyridine-4-methyl)-1H-1,2,3-triazol-4-yl)pyridine) form a planar cationic panel with vacant pyridyl binding sites. They interact with planar neutral aromatic guests through - and/or metallophilic interactions. In some cases, the metallo-ligands also interacted in the solid state with Ag-I either through coordination to the pendant pyridyl arms, or through metal-metal interactions, forming coordination polymers. We have therefore developed a system that reliably recognises a planar electron-rich guest in solution and in the solid state, and shows the potential to link the resultant host-guest adducts into extended solid-state structures. The facile synthesis and ready functionalisation of 2-pyridyl-1,2,3-triazole ligands through copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) click chemistry should allow for ready tuning of the electronic properties of adducts formed from these systems.
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