Cocrystallization of Two Negatively Charged Dimercaptomaleonitrile-Stabilized Silver Nanoclusters

Abstract

Studies on the assembly of atomically precise metal nanoclusters (NCs) are of great significance in the nanomaterial field, which has attracted increasing interest in the last few decades. Herein, we report the cocrystallization of two negatively charged atom-precise silver nanoclusters, the octahedral [Ag62(MNT)24(TPP)6]8– (Ag62 ) and the truncated-tetrahedral [Ag22(MNT)12(TPP)4]4– (Ag22 ) in a 1:2 ratio (MNT2– = dimercaptomaleonitrile, TPP = triphenylphosphine). As far as we know, a cocrystal containing two negatively charged NCs has seldom been reported. Single-crystal structure determinations reveal that the component Ag22 and Ag62 NCs both adopt core–shell structures. In addition, the component NCs were separately obtained by adjusting the synthetic conditions. This work enriches the structural diversity of silver NCs and extends the family of cluster-based cocrystals.

Parasitism in Metal Nanoclusters: A Case Study of (AuAg)25·(AuAg)27

“…In recent years, cocrystals have emerged as attractive nanomaterials with aesthetic structures, fascinating properties, and diverse potential applications. − Cocrystallization represents the long-range ordered arrangement of two or more components in the same crystallization system, and the special noncovalent interactions between/among these components often lead to various intriguing properties that are different from any single component. Nanocluster cocrystallization provides an ideal platform to explore the intermolecular interactions between and among multiple nanoparticles.…”

Recent advances in atomically precise metal nanoclusters for electrocatalytic applications

“…To date, many controllable preparation methods of NCs have been developed, such as the direct synthesis method, ligand exchange method, size-focusing method, intercluster reaction method, and so on. [10][11][12] Importantly, the clear surface structural information of NCs could be obtained by single-crystal X-ray diffraction. Combining preparatory techniques and characterization of NCs therefore grants precise control of their composition, size, and structure at the atomic level, which is advantageous for comprehension of the structure and catalytic capability of ultra-small scale electrocatalysts.…”

Dual‐Stimuli Cooperative Responsive Hydrogel Microactuators Via Two‐Photon Lithography

“…[13][14][15][16][17][18][19][20] The design and implementation of multi-stimuli response characteristics are important not only for research but also for practical applications such as actuation and sensing, given the complexity and diversity of environments in which hydrogel materials are used. [21][22][23][24][25] Recently, many advances have been made in the study of dual-responsive hydrogels at the macroscopic scale. [26][27][28] Furthermore, miniaturization and compactness of hydrogels have become a new research trend, especially for the applications in microfluidics.…”