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Design Strategies and Redox-Dependent Applications of Insoluble Viologen-Based Covalent Organic Polymers
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-01-22 00:00:00 , DOI: 10.1021/acsami.8b20743 Tina Škorjanc 1 , Dinesh Shetty 1 , Mark A. Olson 2 , Ali Trabolsi 1
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2019-01-22 00:00:00 , DOI: 10.1021/acsami.8b20743 Tina Škorjanc 1 , Dinesh Shetty 1 , Mark A. Olson 2 , Ali Trabolsi 1
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Dicationic quaternary salts of 4,4′-bipyridine, also referred to as the viologen family, are well-known for their interesting redox chemistry, whereby they can be reversibly reduced into radical cationic and neutral moieties. Because of this ability to switch between different redox states, viologens have frequently been incorporated into covalent organic polymers (COPs) as molecular switches to construct stimuli-responsive materials. Although many viologen-based COPs have been reported, hyper-conjugated insoluble COPs started to emerge fairly recently and have not been comprehensively reviewed. In this review, we investigate the design strategies employed in the synthesis of insoluble viologen-based COPs, which can be broadly classified as those with viologen in the backbone and those with viologen as pendant groups. Chemical reactions used in the synthesis of each category, including Sonogashira-Hagihara cross-coupling, Menshutkin and Zincke reactions, are highlighted. Diverse applications of these COPs are discussed with particular reference to the redox state of viologen in each material. Uses of these materials for gas adsorption, organic and inorganic pollutant removal, catalysis, sensing and film fabrication are explored.
中文翻译：
不溶性基于紫罗兰色的共价有机聚合物的设计策略和依赖氧化还原的应用
4,4'-联吡啶的阳离子季铵盐，也称为紫精家族，以其有趣的氧化还原化学而闻名，可将其可逆地还原为自由基阳离子和中性基团。由于这种在不同的氧化还原状态之间切换的能力，紫精经常被掺入共价有机聚合物（COPs）中作为分子开关来构建刺激反应性材料。尽管已经报道了许多基于紫精的COP，但超共轭不溶性COP最近才出现，并且尚未得到全面审查。在这篇综述中，我们研究了基于不溶性基于紫精的COP合成的设计策略，该COP可以大致分类为骨架中带有紫精的那些和侧基为紫精的那些。重点介绍了在每种类别的合成中使用的化学反应，包括Sonogashira-Hagihara交叉偶联，Mensuttkin和Zincke反应。这些COP的不同应用将特别参考每种材料中的紫精的氧化还原状态进行讨论。探索了这些材料在气体吸附，有机和无机污染物去除，催化，感测和膜制造中的用途。
更新日期：2019-01-22
中文翻译：
不溶性基于紫罗兰色的共价有机聚合物的设计策略和依赖氧化还原的应用
4,4'-联吡啶的阳离子季铵盐，也称为紫精家族，以其有趣的氧化还原化学而闻名，可将其可逆地还原为自由基阳离子和中性基团。由于这种在不同的氧化还原状态之间切换的能力，紫精经常被掺入共价有机聚合物（COPs）中作为分子开关来构建刺激反应性材料。尽管已经报道了许多基于紫精的COP，但超共轭不溶性COP最近才出现，并且尚未得到全面审查。在这篇综述中，我们研究了基于不溶性基于紫精的COP合成的设计策略，该COP可以大致分类为骨架中带有紫精的那些和侧基为紫精的那些。重点介绍了在每种类别的合成中使用的化学反应，包括Sonogashira-Hagihara交叉偶联，Mensuttkin和Zincke反应。这些COP的不同应用将特别参考每种材料中的紫精的氧化还原状态进行讨论。探索了这些材料在气体吸附，有机和无机污染物去除，催化，感测和膜制造中的用途。
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