Pillar[5]arene-Diketopyrrolopyrrole Fluorescent Copolymer: A Promising Recognition and Adsorption Material for Adiponitrile by Selective Formation of a Conjugated Polypseudorotaxane
Pillar[5]arene-Diketopyrrolopyrrole Fluorescent Copolymer: A Promising Recognition and Adsorption Material for Adiponitrile by Selective Formation of a Conjugated Polypseudorotaxane
复制标题
柱[5]芳烃-二酮吡咯并吡咯荧光共聚物：通过选择性形成共轭聚拟轮烷，一种有前途的己二腈识别和吸附材料
DOI：
10.1002/marc.201700161
复制
发表时间：
2017-07-01
影响因子：
4.6
通讯作者：
Cao, Derong
中科院分区：
文献类型：
--
作者：
Cui, Wei;Tang, Hao;Cao, Derong
通过双官能化的柱[5]芳烃和二酮基吡咯并吡咯单体的共聚反应合成了共轭柱[5]芳烃-二酮基吡咯并吡咯共聚物（P1），其在519 nm处表现出大的消光系数（1.1 × 10（4）m（-1）cm（-1）），在587 nm处表现出强的发射。P1对己二腈表现出非常强的主体-客体结合亲和力，但对1，4-二卤代丁烷和1，4-双（咪唑-1-基）丁烷表现出低结合亲和力。这种增强的选择性首先在有机溶液中的柱芳烃和中性客体之间的聚己二腈dorotaxane中发现，并通过形成P1-己二腈聚己二腈dorotaxane成功地用于识别和吸附己二腈。
Conjugated pillar[5] arene-diketopyrrolopyrrole copolymer (P1) is synthesized by the copolymerization of a difunctionalized pillar[5] arene and a diketopyrrolopyrrole-based monomer, which shows large extinction coefficients (1.1 x 10(4) m(-1) cm(-1)) at 519 nm and strong emission at 587 nm. P1 exhibits very strong host-guest binding affinity towards adiponitrile but low binding affinity towards 1,4-dihalobutane and 1,4-bis(imidazol-1-yl) butane. Such an enhanced selectivity is first found in the polypseudorotaxane between pillararene and neutral guests in organic solution and is successfully used for the recognition and adsorption of adiponitrile by the formation of a P1-adiponitrile polypseudorotaxane.