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Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications
Published on: March 22, 2020
Intensely luminescent gold(I)-silver(I) cluster with hypercoordinated carbon
1State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen, 361005, PR China.
Journal of the American Chemical Society
|November 19, 2009
Summary
A new gold-silver cluster exhibits strong phosphorescence in solution and solid states. Incorporating silver atoms enhances the cluster
Area of Science:
- * Inorganic Chemistry
- * Materials Science
- * Photochemistry
Background:
- * Luminescent metal clusters are crucial for advanced optical applications.
- * Developing stable and efficient phosphorescent materials remains a key challenge.
- * Gold(I) and silver(I) clusters offer unique electronic and structural properties.
Purpose of the Study:
- * To synthesize and characterize a novel photostable gold(I)-silver(I) cluster.
- * To investigate the photophysical properties, specifically phosphorescence, of the new cluster.
- * To understand the role of silver incorporation on cluster stability and luminescence.
Main Methods:
- * Synthesis of the [Au(6)Ag(2)(C)(dppy)(6)](BF(4))(4) cluster.
- * Spectroscopic analysis (UV-Vis absorption, emission spectroscopy).
- * Photoluminescence quantum yield and lifetime measurements.
Main Results:
- * Intense solution and solid-state phosphorescence was observed from the novel cluster.
- * The cluster demonstrated high photostability under irradiation.
- * Incorporation of silver atoms into the hexagold(I) core enhanced structural rigidity and integrity.
Conclusions:
- * The novel gold(I)-silver(I) cluster exhibits promising luminescent properties for potential applications.
- * Silver atom incorporation is an effective strategy to improve the stability of gold-based clusters.
- * The hypercoordinated carbon center plays a key role in the cluster's structure and photophysics.
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