Self-Assembly of Complementary Components Using a Tripodal Bismuth Compound: Pnictogen Bonding or Coordination Chemistry?

Self-Assembly of Complementary Components Using a Tripodal Bismuth Compound: Pnictogen Bonding or Coordination Chemistry?
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使用三足铋化合物自组装互补组分:磷元素键合或配位化学?

DOI:
10.1021/acs.inorgchem.1c01232
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发表时间:
2021
影响因子:
4.6
通讯作者:
Cozzolino, Anthony F.
Cozzolino, Anthony F.
中科院分区:
化学2区
文献类型:
--
作者:
Moaven, Shiva;Watson, Brandon T.;Polaske, Thomas J.;Karl, Brian M.;Unruh, Daniel K.;Bowling, Nathan P.;Cozzolino, Anthony F.

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三磷元素键合是指磷元素原子通过单个磷元素原子同时与互补伙伴形成三个磷元素键(PnB)的能力。与其他命名的超分子相互作用相比,这种超分子策略最近被引入作为磷元素键合的独特方面。在此,使用 Bi((NC9H7)3CH3) 证明了铋参与此现象的能力。研究表明,Bi 比类似的 Sb 系统能形成更强的 PnB。结果与形成强配位键的 Bi 系统进行了对比,并且对沿键路径的电子密度的分析揭示了关键的差异。通过 PFGSE NMR 光谱研究了这些新合成的超分子的溶液行为,发现它们在溶液中保持完整。允许三重磷元素键合的分子设计策略应该在分子识别和晶体工程领域得到应用。
Triple pnictogen bonding refers to the ability of a pnictogen atom to engage in three simultaneous pnictogen bonds (PnBs) to a complementary partner through a single pnictogen atom. This supramolecular strategy was recently introduced as a unique facet of pnictogen bonding as compared to other named supramolecular interactions. Here, the ability of bismuth to participate in this phenomenon is demonstrated using Bi((NC9H7)3CH3). The study reveals that Bi engages in stronger PnBs than the analogous Sb system. The results have been contrasted with Bi systems that form strong coordination bonds, and analysis of the electron density along the bond path reveals key differences. The solution behavior of these newly synthesized supramolecules were studied by PFGSE NMR spectroscopy and they are found to remain intact in solution. Molecular design strategies that allow for triple pnictogen bonding should find use in the fields of molecular recognition and crystal engineering.
硫醇铋(III) Bi(SC6F5)3 和 Bi(SC6Cl5)3 与吡啶配体的配位络合物
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