Interdependence Between Nanoclusters AuAg and AuAg

Overview

Journal Nat Commun

Specialty Biology

Date 2021 Feb 4

PMID 33536428

Citations 2

Authors

Danyu Liu

Wenjun Du

Shuang Chen

Xi Kang

Along Chen

Yaru Zhen

Shan Jin

Daqiao Hu

Shuxin Wang

Manzhou Zhu

Affiliations

Soon will be listed here.

Abstract

Whole series of nanoparticles have now been reported, but probing the competing or coexisting effects in their synthesis and growth remains challenging. Here, we report a bi-nanocluster system comprising two ultra-small, atomically precise nanoclusters, AuAg(SR) and AuAg(SR)(Dppm) (SR = cyclohexyl mercaptan, Dppm = bis(diphenylphosphino)-methane). The mechanism by which these two nanoclusters coexist is elucidated, and found to entail formation of the unstable AuAg(SR), followed by its partial conversion to AuAg(SR)(Dppm) in the presence of di-phosphorus ligands, and an interdependent bi-nanocluster system is established, wherein the two oppositely charged nanoclusters protect each other from decomposition. AuAg(SR) and AuAg(SR)(Dppm) are fully characterized by single crystal X-ray diffraction (SC-XRD) analysis - it is found that their co-crystallization results in single crystals comprising equimolar amounts of each. The findings highlight the interdependent relationship between two individual nanoclusters, which paves the way for new perspectives on nanocluster formation and stability.

Citing Articles

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Controllable synthesis and electrocatalytic applications of atomically precise gold nanoclusters.

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