A four-unit [c2]daisy chain connected by hydrogen bonds

Zhang, Qian; Zhang, Chun-Hang; Yang, Jun-Hui; Xin, Peng-Yang; Xuan, Xiao-Peng; Wang, Jian-Ge; Ma, Na-Na; Guo, Hai-Ming; Qu, Gui-Rong

A four-unit [c2]daisy chain connected by hydrogen bonds

2015

A mono-adenine-functionalized pillar[5]arene and a guest including uracil were prepared. They formed a novel four-unit [c2]daisy chain both in the solid state and in a chloroform solution. As far as we know, this [c2]daisy chain is the first one without a covalently bound linear thread. This unique assembly behavior is mainly induced by hydrogen-bond interactions between A and U in the A–U base pairs.

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