Multicomponent Assembly of Macrocycles and Polymers by Coordination of Pyridyl Ligands to 1,4‐Bis(benzodioxaborole)benzene |
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| Authors: | Burcak Icli Dr Euro Solari Dr Benan Kilbas Dr Rosario Scopelliti Prof Kay Severin |
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| Institution: | 1. Institut des Sciences et Ingénierie Chimiques, école Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland), Fax: (+41)?21‐693‐9305;2. Department of Chemistry, Faculty of Sciences, Duzce University, 81620 Duzce (Turkey) |
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| Abstract: | Multicomponent reactions between 1,4‐benzenediboronic acid, catechol, and different pyridyl ligands are reported. The condensation of 1,4‐benzenediboronic acid with catechol gives 1,4‐bis(benzodioxaborole)benzene. Upon crystallization, the ester aggregates with the N‐donor ligands through dative B? N bonds. Depending on the nature of the pyridyl ligand, molecularly defined macrocycles or polymeric structures are obtained. 1D polymers are formed with 4,4‐bipyridine and 1,2‐di(4‐pyridyl)ethylene, whereas a 2D network is obtained with the tetradentate ligand tetra(4‐pyridylphenyl)ethylene. These results highlight the utility of dative B? N bonds in structural supramolecular chemistry and crystal engineering. |
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| Keywords: | boronic acids dative bonds macrocycles polymers supramolecular chemistry |
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