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Updated: Oct 4, 2025

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

In Situ SIMS and IR Spectroscopy of Well-defined Surfaces Prepared by Soft Landing of Mass-selected Ions

Published on: June 16, 2014

Molecular surface modification of silver chalcogenolate clusters.

Lei Hu¹, Ming-Ming Sheng¹, Shun-Shun Qin¹

¹Institute of Molecular Engineering and Applied Chemistry, Anhui University of Technology, Ma'anshan, 243002, P. R. China. zhangqf@ahut.edu.cn.

Dalton Transactions (Cambridge, England : 2003)

|February 8, 2022

Summary

This summary is machine-generated.

Researchers developed stable silver chalcogenolate clusters (SCCs) with tunable luminescence. Pyridine ligands enhanced structural stability in air, humidity, and water, offering new possibilities for functional nanomaterials.

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Published on: February 5, 2016

Area of Science:

Materials Science
Nanotechnology
Inorganic Chemistry

Background:

Silver chalcogenolate clusters (SCCs) are nanomaterials with potential applications in luminescence.
Controlling the stability and optical properties of SCCs remains a challenge.

Purpose of the Study:

To synthesize SCCs with a stable [Ag12S6] core and tuneable luminescence.
To investigate the effect of surface ligands on the structural stability and optical properties of SCCs.

Main Methods:

Molecular surface modification using different organic ligands (DMAc and pyridines).
Characterization of SCCs' luminescence properties at 77 K.
Assessment of SCCs' stability under various ambient conditions (air, humid air, liquid water).

Main Results:

SCCs exhibited strong, tuneable luminescence from green to red, dependent on pyridine ligands.
SCCs functionalized with pyridine showed significantly enhanced structural stability in ambient and humid air, and liquid water.
Pyridine ligands formed strong coordination bonds, contributing to the enhanced stability of SCCs.

Conclusions:

Molecular surface modification is an effective strategy for designing stable and luminescent SCCs.
Pyridine ligands offer superior structural stabilization compared to DMAc for SCCs.
This work provides a pathway for developing robust metal nanoclusters with tailored physicochemical properties.