School of Physics and Materials Science, Institute of Physical Science and Information Technology, Anhui Key Laboratory of Information Materials and Devices, Anhui University, Hefei, Anhui, 230601, People's Republic of China.
Institutes of Physical Science and Information Technology, Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei, Anhui, 230601, China.
Nanoscale Horiz. 2021 Oct 25;6(11):913-917. doi: 10.1039/d1nh00332a.
The hierarchical assemblies of well-defined structural nanoclusters can help to better understand those of biologically important molecules such as DNA and proteins. Herein, we disclose the synthesis and characterization of a new silver nanocluster, that is Ag(SR)(PPh) (Ag70-TPP). Directed by the ligands, Ag70-TPP nanoclusters undergo self-hierarchical assembly into a highly space-efficient complex secondary structure of a double helical 4H (DH4H) close packing pattern. The chirality of Ag70-TPP, and the van der Waals forces interactions between the ligands are believed to drive its DH4H arrangement, and the observed interlocking of the phosphine ligands of adjacent Ag70-TPP nanoclusters also contributed. Overall, this work has yielded important and unprecedented insights into the internal structure and crystallographic arrangement of nanoclusters.
具有明确定义结构的纳米团簇的分级组装有助于更好地理解 DNA 和蛋白质等生物重要分子的结构。在此，我们披露了一种新的银纳米团簇 Ag(SR)(PPh) (Ag70-TPP) 的合成和表征。受配体的引导，Ag70-TPP 纳米团簇自行分级组装成具有高度空间效率的双链体 4H（DH4H）紧密堆积模式的复杂二级结构。Ag70-TPP 的手性和配体之间的范德华力相互作用被认为驱动了其 DH4H 排列，相邻 Ag70-TPP 纳米团簇的膦配体的互锁也有贡献。总的来说，这项工作为纳米团簇的内部结构和晶体排列提供了重要且前所未有的见解。
