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Benzoate-Induced High-Nuclearity Silver Thiolate Clusters.

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|January 31, 2018
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Summary
This summary is machine-generated.

Organic ligands significantly influence silver thiolate cluster structures. Researchers synthesized three new benzoate-functionalized clusters with varying nuclearities and unique architectures, exhibiting near-infrared luminescence and thermochromic properties.

Keywords:
anion templatescluster compoundscore-shell structuresluminescencesilver

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Area of Science:

  • Inorganic Chemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • The role of organic ligands in silver thiolate cluster formation is less understood than anion-templated effects.
  • High-nuclearity silver thiolate clusters are of interest for their unique structures and properties.

Purpose of the Study:

  • To investigate the influence of benzoate ligands on the structure of high-nuclearity silver(I) thiolate clusters.
  • To synthesize and characterize novel silver clusters templated by diverse anions.

Main Methods:

  • Single-crystal X-ray diffraction analysis to determine cluster structures.
  • Synthesis of benzoate-functionalized silver thiolate clusters using various anion templates (S2-, α-[Mo5 O18]6-, MoO42-).

Main Results:

  • Three new silver clusters (SD/Ag28, SD/Ag29, SD/Ag30) with nuclearities ranging from 32 to 78 were synthesized.
  • Structures included a turtle-like Ag29 shell, a prolate Ag38 sphere, and a complex core-shell Ag57/Ag21S13 cluster.
  • Clusters displayed near-infrared luminescence and distinct thermochromic behaviors.

Conclusions:

  • Benzoate ligands play a crucial role in modulating the nuclearity and structural arrangements of silver clusters.
  • The study demonstrates a flexible synthetic strategy for creating diverse high-nuclearity silver clusters.
  • The synthesized clusters exhibit interesting luminescent properties, opening avenues for further research.