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Multicomponent assembly of macrocycles and polymers by coordination of pyridyl ligands to 1,4-bis(benzodioxaborole)benzene

机译:通过吡啶基配体与1,4-双(苯并二恶唑硼烷)苯的配位,将大环化合物和聚合物进行多组分组装

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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. Macrocyclic or polymeric structures were formed from the reactions between 1,4-benzenediboronic acid, catechol, and di-, tri-, and tetratopic pyridyl ligands (see figure). These results demonstrate the utility of dative B-N bonds in structural supramolecular chemistry and crystal engineering.
机译:报道了1,4-苯二硼酸,儿茶酚和不同吡啶基配体之间的多组分反应。 1,4-苯二硼酸与邻苯二酚的缩合得到1,4-双(苯并二恶唑硼烷)苯。结晶后,该酯与N-供体配体通过固定的B-N键聚集。根据吡啶基配体的性质,获得分子定义的大环或聚合物结构。一维聚合物由4,4-联吡啶和1,2-二(4-吡啶基)乙烯形成,而四齿配体四(4-吡啶基苯基)乙烯获得2D网络。这些结果突出了在结构上的超分子化学和晶体工程中,B-N键合的作用。大环或聚合物结构是由1,4-苯二硼酸,邻苯二酚与二,三和四吡啶基配位体之间的反应形成的(见图)。这些结果证明了B-N键在结构超分子化学和晶体工程中的实用性。

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