Bridging arsolido complexes.

Area of Science:

• Organometallic Chemistry
• Coordination Chemistry
• Materials Science

Background:

• The synthesis of novel organometallic compounds with unique bridging ligands is crucial for developing new materials.
• Arsolyl complexes offer interesting electronic and structural properties for coordination chemistry.

Purpose of the Study:

• To synthesize and characterize new heterobimetallic and tetrametallic complexes using a σ-arsolyl complex as a metallo-ligand.
• To explore the reactivity of the σ-arsolyl complex with various transition metal precursors.

Main Methods:

• Synthesis of the σ-arsolyl complex [Mo(AsC4Me4)(CO)3(η-C5H5)].
• Reactions of the σ-arsolyl complex with metal carbonyl precursors ([Cr(THF)(CO)5], [Au(C6F5)(THT)], [Mn(THF)(CO)2(η5-C5H4Me)], [Fe(THF)(CO)2(η5-C5H5)]PF6, and [Co3(μ3-CH)(CO)9]).
• Characterization of products using X-ray crystallography and computational analysis.

Main Results:

• Successful synthesis of μ-arsolido bridged heterobimetallic complexes involving Mo with Cr, Mn, Au, and Fe.
• Formation of a tetrametallic species containing Mo and Co through reaction with a cobalt carbonyl cluster.
• Detailed structural and electronic insights provided by crystallographic and computational data.

Conclusions:

• The σ-arsolyl complex is a versatile building block for constructing complex multinuclear organometallic structures.
• The study expands the scope of known arsolido-bridged metal complexes.
• The findings contribute to the understanding of metal-ligand interactions in polynuclear systems.