Zhai Xue-Jing, Luo Meng-Yu, Luo Xi-Ming, Dong Xi-Yan, Si Yubing, Zhang Chong, Han Zhen, Han Runping, Zang Shuang-Quan, Mak Thomas C W
College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China.
College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo, 454003, China.
Nat Commun. 2024 Oct 23;15(1):9155. doi: 10.1038/s41467-024-53471-3.
Achieving precise and controllable hierarchical self-assembly of functional nanoclusters within crystal lattices to create distinct architectures is of immense significance, yet it creates considerable challenges. Here we successfully synthesized a silver nanowheel Ag, along with its optically pure enantiomers S-/R-Ag Each species possesses an internal nanospace and exhibits host-guest interactions. These structures are constructed from primary building blocks (Ag). By manipulating the surface anions and guest molecules, the nanowheels function as secondary building blocks, spontaneously organizing into complex double- and triple-helical crystalline superstructures or one-dimensional chains {Ag} through conformational matching and diverse noncovalent interactions. Moreover, we demonstrate that the water-mediated complex specifically assembled with uridine monophosphate nucleotides, resulting in chiral assemblies of Ag that exhibit chiroptical activity for specific recognition. Our findings provide insights into the efficient construction of assemblies with hollow frameworks and propose strategies for superstructure engineering by manipulating surface motifs.
在晶格内实现功能纳米团簇的精确且可控的分级自组装以创建独特的结构具有极其重要的意义，但也带来了相当大的挑战。在此，我们成功合成了一种银纳米轮Ag，以及其光学纯对映体S-/R-Ag。每个物种都拥有一个内部纳米空间并表现出主客体相互作用。这些结构由基本构建单元（Ag）构成。通过操纵表面阴离子和客体分子，纳米轮作为二级构建单元，通过构象匹配和多样的非共价相互作用自发组织成复杂的双螺旋和三螺旋晶体超结构或一维链{Ag}。此外，我们证明了水介导的配合物与单磷酸尿苷核苷酸特异性组装，导致Ag的手性组装体表现出用于特异性识别的手性光学活性。我们的发现为具有空心框架的组装体的高效构建提供了见解，并提出了通过操纵表面基序进行超结构工程的策略。
