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Exploring Anion-π Interactions and Their Applications in Supramolecular Chemistry.
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2020-06-19 , DOI: 10.1021/acs.accounts.0c00243
De-Xian Wang 1, 2 , Mei-Xiang Wang 3
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2020-06-19 , DOI: 10.1021/acs.accounts.0c00243
De-Xian Wang 1, 2 , Mei-Xiang Wang 3
Affiliation
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Noncovalent bond interactions provide primary driving forces for supramolecular processes ranging from molecular recognition to self-assembly of sophisticated abiotic and biological machineries. While hydrogen bonding and π–π interactions are arguably textbook concepts playing indispensable parts in various scientific disciplines, noncovalent anion−π interactions have been emerging as attractive forces between π systems and negatively charged species for just about two decades. At the beginning of this century, three research groups reported independently their computational studies on the interactions between anions and aromatic compounds, proposing attractive anion−π interactions. Since π systems such as aromatic rings are traditionally noted as electron rich entities, anions and π systems would be repulsive to each other if there are any interactions. In stark contrast to the acknowledged cation−π interactions, the seemingly counterintuitive noncovalent anion−π bindings invoked great interest in the following years. Although a plethora of calculations had been published, the lack of experimental evidence cast doubt on the existence of anion−π interactions between anions and charge-neutral aromatic systems.
中文翻译:
探索阴离子-π相互作用及其在超分子化学中的应用。
非共价键相互作用为超分子过程提供了主要驱动力,其范围从分子识别到复杂的非生物和生物机械的自组装。尽管氢键和π-π相互作用可以说是教科书中各种科学学科中必不可少的概念,但非共价阴离子-π相互作用已经成为π系统与带负电荷的物种之间的吸引力,已经持续了大约二十年。在本世纪初,三个研究小组独立地报告了他们对阴离子与芳族化合物之间相互作用的计算研究,提出了有吸引力的阴离子-π相互作用。由于传统上将π系统(例如芳环)称为富电子实体,如果存在任何相互作用,阴离子和π系统将互相排斥。与公认的阳离子-π相互作用形成鲜明对比的是,看似反直觉的非共价阴离子-π结合在随后的几年引起了极大的兴趣。尽管已经发表了大量的计算方法,但是缺乏实验证据使人们怀疑阴离子与电荷中性芳族体系之间存在阴离子-π相互作用。
更新日期:2020-07-21
中文翻译:
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探索阴离子-π相互作用及其在超分子化学中的应用。
非共价键相互作用为超分子过程提供了主要驱动力,其范围从分子识别到复杂的非生物和生物机械的自组装。尽管氢键和π-π相互作用可以说是教科书中各种科学学科中必不可少的概念,但非共价阴离子-π相互作用已经成为π系统与带负电荷的物种之间的吸引力,已经持续了大约二十年。在本世纪初,三个研究小组独立地报告了他们对阴离子与芳族化合物之间相互作用的计算研究,提出了有吸引力的阴离子-π相互作用。由于传统上将π系统(例如芳环)称为富电子实体,如果存在任何相互作用,阴离子和π系统将互相排斥。与公认的阳离子-π相互作用形成鲜明对比的是,看似反直觉的非共价阴离子-π结合在随后的几年引起了极大的兴趣。尽管已经发表了大量的计算方法,但是缺乏实验证据使人们怀疑阴离子与电荷中性芳族体系之间存在阴离子-π相互作用。