Chiral copper-hydride nanoclusters: synthesis, structure, and assembly.

Area of Science:

• Inorganic Chemistry
• Materials Science
• Nanotechnology

Background:

• Layered nanoclusters are crucial in materials science.
• Developing novel nanocluster structures with unique properties is an ongoing challenge.
• Copper nanoclusters offer diverse applications due to their electronic and catalytic properties.

Purpose of the Study:

• To synthesize a novel and stable layered copper nanocluster.
• To investigate the structural and chiral properties of the synthesized nanocluster.
• To explore potential applications of the nanocluster in drug filling and gas adsorption.

Main Methods:

• One-pot reduction method for nanocluster synthesis.
• Single crystal X-ray diffraction analysis for structural characterization.
• Analysis of non-covalent interactions (C-H⋯Cu, C-H⋯π, C-H⋯H-C) to understand chirality and self-assembly.

Main Results:

• Successfully synthesized a novel layered copper nanocluster, [Cu14(tBuS)3(PPh3)7H10]BF4.
• The nanocluster exhibits intrinsic chirality without chiral ligands, driven by non-covalent interactions.
• Interlacing chiral enantiomers create large cavities, and phenyl group interactions promote dextral helix formation and nanostructure self-assembly.

Conclusions:

• A new strategy for synthesizing stable, intrinsically chiral copper nanoclusters has been established.
• The unique structural features, including cavities and helical self-assembly, open avenues for advanced applications.
• This work provides a foundation for designing functional nanoclusters with tunable properties.