Macroscopic Gold Cluster Helical Tendrils

作者：Ya-Jie Wang, Shi Xiao-yan, Y. B. Guo, X Wang, Ke-Xin Zheng, Xuewen Yang, Pengyao Xing, Shuang‐Quan Zang · 发表于：Journal of the American Chemical Society · 年份：2025 · DOI：10.1021/jacs.4c17800 · 被引用次数：15 · 研究领域：Nanocluster Synthesis and Applications、Supramolecular Self-Assembly in Materials、Gold and Silver Nanoparticles Synthesis and Applications

Handedness-controllable macroscopic helices are needed for understanding the chirality transfer through scales and design of high-performance devices. Bottom-up self-assembly rarely affords macroscopic helical superstructures because of accumulating disorder that is difficult to avoid during hierarchical self-assembly. Here, we demonstrate that tetragold Au 4 clusters can assemble into macroscopic helices at the centimeter scale. Halogen-bond induces hierarchical self-assembly from nanotubes to aslant stacked nanotubes and finally to macrohelices. Sacrificial template synthesis via solvent-corrosion sufficiently removes the embedded 1,3,5-trifluoro-2,4,6-triiodobenzene to produce helical skeletons. Homochiral macroscopic tendrils are controllably synthesized by chiral halogen bonding donors, allowing high-fidelity chiral amplification. This work contributes to the development of macroscopic helical superstructures by hierarchical assembly.