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Facet-to-facet Linking of Shape-anisotropic Colloidal Cadmium Chalcogenide Nanostructures

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Chirality and Surface Bonding Correlation in Atomically Precise Metal Nanoclusters.

Yingwei Li¹, Tatsuya Higaki¹, Xiangsha Du¹

¹Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.

Advanced Materials (Deerfield Beach, Fla.)

|March 18, 2020

Summary

This summary is machine-generated.

Chiral nanoclusters derive their chirality from metal-ligand bonding, offering new applications. Understanding these bonding modes is key to designing novel chiral nanomaterials.

Keywords:

Au-thiolate nanoclusters atomically precise nanoclusters chirality motifs surface bonding

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Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

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Published on: June 25, 2018

Area of Science:

Nanochemistry
Materials Science
Physical Chemistry

Background:

Chirality is a fundamental property observed across natural systems.
Chiral nanostructures are gaining importance in various applications.
Atomically precise nanochemistry enables the determination of nanocluster structures.

Purpose of the Study:

To propose a unified model for metal-ligand surface bonding-induced chirality in nanoclusters.
To explore the origins of chirality in ligand-protected metal nanoclusters.
To compare different metal-ligand systems and their impact on chirality.

Main Methods:

Structural analysis of ligand-protected metal nanoclusters (NCs).
Investigation of metal-ligand (M-X) bonding modes.
Comparison of chiral features in different nanocluster systems (e.g., Au-thiolate vs. Au-phosphine).

Main Results:

Chirality in nanoclusters originates from surface ligands, organic-inorganic interfaces, and the kernel.
Different M-X bonding modes dictate surface structures and chiral properties.
Ag/Cu/Cd-thiolate systems show distinct coordination compared to Au-thiolate NCs.

Conclusions:

A unified picture of metal-ligand surface bonding as the source of nanocluster chirality is presented.
Surface bonding plays a critical role in determining the chiral characteristics of nanoclusters.
Methods for obtaining chiroptically active nanoclusters include enantioseparation and enantioselective synthesis.