Hierarchical assembly of uranyl metallacycles involving macrocyclic hosts  

作　　者：Yuanyuan Liang Lei Mei Qiuyan Jin Junshan Geng Jingyang Wang Kang Liu Kongqiu Hu Jipan Yu Weiqun Shi 

机构地区：[1]Laboratory of Nuclear Energy Chemistry,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China [2]University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Chemical Letters》2022年第7期3539-3542,共4页中国化学快报（英文版）

基　　金：support from the National Science Fund for Distinguished Young Scholars(No.21925603);the National Natural Science Foundation of China(Nos.22122609,22076186 and 22176191)。

摘　　要：Actinide metallacycles are an emerging class of functional coordination assemblies,but multi-level assembly from metallacycle units toward hierarchical supramolecular structures are still rarely investigated.In this work,we put forward a novel supramolecular inclusion-based method through introducing two macrocyclic hosts,cucurbit[7]uril(CB[7])and cucurbit[8]uril(CB[8])to facilitate hierarchical assembly of uranyl metallacycles with higher complexity,and successfully prepare two different kinds of uranyl metallacycle-based complexes with intriguing hierarchical structures,a CB[7]-based four-member molecular necklace([4]MN)and a CB[8]-involved ring-in-ring supramolecular polymer chain.The results obtained here prove the feasibility of supramolecular inclusion for regulating coordination assembly of uranyl metallacycles and related hierarchical structures.It is believed that this method can be used to achieve the construction of actinide coordination assemblies with higher structural complexity.

关 键 词：METALLACYCLE Coordination self-assembly URANYL CUCURBITURIL Hierarchical structure Molecular necklace 

分 类 号：O641.4[理学—物理化学]