Octa-deca-bromidobis(dicarbido)deca-dysprosium, [Dy(10)Br(18)(C(2))(2)]

Area of Science:

• Solid-state chemistry
• Inorganic chemistry
• Materials science

Background:

• Rare-earth metal halides are known for diverse structural motifs.
• Dysprosium compounds exhibit unique magnetic and electronic properties.
• Understanding the synthesis and structure of novel clusters is crucial for materials development.

Purpose of the Study:

• To synthesize and characterize a new dysprosium bromide cluster compound.
• To elucidate the crystal structure of [Dy(10)Br(18)(C2)(2)].
• To investigate the structural relationship with its iodido analogue.

Main Methods:

• Single crystal growth via high-temperature reaction in a sealed tantalum container.
• X-ray diffraction analysis for crystal structure determination.
• Comparison with known isotypic compounds.

Main Results:

• Single crystals of [Dy(10)Br(18)(C2)(2)] were successfully synthesized.
• The crystal structure features Dy-atom dimers forming edge-sharing octahedra, each encapsulating a C2 unit.
• A 3D network is formed by these dimers connected via bromide atoms.

Conclusions:

• A novel dysprosium bromide cluster compound, [Dy(10)Br(18)(C2)(2)], has been synthesized and structurally characterized.
• The compound exhibits a unique dimeric structure with encapsulated C2 units.
• [Dy(10)Br(18)(C2)(2)] is isotypic with its previously reported iodido analogue, [Dy(10)I(18)(C2)(2)].