PtB₁₃^-: a planar metal doped boron cluster with high stability

Area of Science:

• Materials Science
• Computational Chemistry
• Nanotechnology

Background:

• Transition metal (TM) doped boron clusters are of significant interest due to their unique electronic properties and bonding.
• Understanding their structural evolution is key to developing new boron-based nanomaterials.

Purpose of the Study:

• To investigate the structural evolution and electronic properties of anionic platinum (Pt) doped boron clusters.
• To identify the most stable Pt-doped boron cluster structures and understand their stability.

Main Methods:

• Utilized the CALYPSO method for global structure searching.
• Employed density functional theory (DFT) calculations for electronic property analysis.

Main Results:

• Observed a morphological transition from 2D planar to 3D twisted and tubular structures with increasing cluster size.
• Identified PtB13- as the most stable cluster, featuring C2v symmetry.
• Determined that multicenter bonds involving Pt 5d and B 2p orbitals contribute to the exceptional stability of PtB13-.

Conclusions:

• The study provides valuable insights into the structural diversity and stability trends of Pt-doped boron clusters.
• Findings are crucial for the rational design and synthesis of advanced boron-based nanoscale materials.