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1. A Luminescent 1D Silver Polymer Containing [2.2]Paracyclophane Ligands

Author

Campbell F. R. Mackenzie, Lucie Delforce, D. Rota Martir, David B. Cordes, Alexandra M. Z. Slawin, and Eli Zysman-Colman

Subjects
coordination polymer, cyclophane, supramolecular chemistry, silver(I), paracyclophane, Chemistry, QD1-999
Abstract

[2.2]Paracyclophane scaffolds have seen limited use as building blocks in supramolecular chemistry. Here, we report the synthesis and characterization of a 1D coordination polymer consisting of silver(I) ions bound to a [2.2]paracyclophane scaffold functionalized with two 4-pyridyl units. The structure of the polymer has been determined from single crystal X-ray diffraction analysis and reveals two different silver coordination motifs that alternate along the 1D coordination polymer. The coordination polymer exhibits strong blue and sky-blue fluorescence in solution and in the crystalline solid state, respectively.

Published
2021
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3. Clusters as ligands: Synthesis, structure and coordination chemistry of ruthenium clusters derived from 4- and 5-ethynyl-2,2′-bipyridine

Author

Paul J. Low, Campbell F. R. Mackenzie, George A. Koutsantonis, Lindsay T. Byrne, Brian W. Skelton, and Sören Bock

Subjects
chemistry.chemical_classification, 010405 organic chemistry, Organic Chemistry, Alkyne, chemistry.chemical_element, Nuclear magnetic resonance spectroscopy, 010402 general chemistry, 01 natural sciences, Biochemistry, Medicinal chemistry, 2,2'-Bipyridine, 0104 chemical sciences, 3. Good health, Coordination complex, Ruthenium, Inorganic Chemistry, chemistry.chemical_compound, chemistry, Materials Chemistry, Proton NMR, Organic chemistry, Moiety, Physical and Theoretical Chemistry, Bimetallic strip
Abstract

The reaction of [Ru3(CO)10(μ-dppm)] (1) with 4-ethynyl-2,2′-bipyridine (2) or 5-ethynyl-2,2′-bipyridine (3) affords the Ru3C2 clusters [Ru3(μ-H)(μ3-C2bpy)(CO)7(dppm)] (bpy = 4-bpy, 4 (22%); bpy = 5-bpy, 5 (55%)). Complexes 4 and 5 have been fully characterised by NMR spectroscopy, with 2D-COSY methods being used to aid 1H NMR assignments, and single crystal X-ray diffraction. The pendant bipyridyl moiety presents as a site for further reaction using the ‘Tinkertoy’ approach, and subsequent reactions of 4 and 5 with PdCl2(NCPh)2 affords the bimetallic complexes [Ru3(μ-H){μ3-C2bpy(κ2-N′,N–PdCl2)}(CO)7(dppm)] bpy = 4-bpy, 6 (55%); bpy = 5-bpy, 7 (35%)).

Published
2016
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