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Chemically modified gold superatoms and superatomic molecules.

Jun-ichi Nishigaki1, Kiichirou Koyasu, Tatsuya Tsukuda

  • 1Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.

Chemical Record (New York, N.Y.)
|July 29, 2014
PubMed
Summary

Gold clusters act as superatoms with discrete electronic levels. Modifying these superatoms and superatomic molecules with organic ligands creates new functional materials for advanced applications.

Keywords:
cluster compoundsgoldligand effectssuperatomic moleculessuperatoms

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Area of Science:

  • * Nanomaterials Science
  • * Inorganic Chemistry
  • * Materials Science

Background:

  • * Gold clusters exhibit superatom characteristics, where confined valence electrons form atomic-like electronic levels.
  • * Chemical functionalization of gold superatoms and superatomic molecules using organic ligands is crucial for developing novel functional materials.
  • * Thiolate and phosphine ligands are key in stabilizing and modifying gold superatoms and superatomic molecules.

Purpose of the Study:

  • * To survey the current advancements in the field of gold superatoms and superatomic molecules.
  • * To elucidate the structure, stability, and bonding schemes of chemically modified gold superatoms and superatomic molecules.
  • * To provide a foundational understanding for designing hierarchical materials based on these superatomic building units.

Main Methods:

  • * Review of existing literature on gold superatoms and superatomic molecules.
  • * Analysis of structural and electronic properties of ligand-protected gold clusters.
  • * Examination of bonding mechanisms between gold cores and organic ligands (thiolates and phosphines).

Main Results:

  • * Demonstration of gold clusters behaving as 'superatoms' with quantized electronic states.
  • * Successful chemical modification of gold superatoms and superatomic molecules using thiolate and phosphine ligands.
  • * Established structure-property relationships for ligand-protected gold superatoms and superatomic molecules.

Conclusions:

  • * Chemically modified gold superatoms and superatomic molecules represent a versatile platform for creating advanced functional materials.
  • * Understanding the structure, stability, and bonding is essential for harnessing their potential in hierarchical material design.
  • * This field holds significant promise for the development of next-generation materials with tailored properties.