Mixed Ligands from Group 15/16 Elements: Interface of Solid-State and Molecular Chemistry

Area of Science:

• Inorganic Chemistry
• Organometallic Chemistry
• Materials Science

Background:

• Heteroatomic ligands from Group 15/16 elements are prevalent in nature, ranging from simple arsenic sulfides to complex sulfosalt minerals.
• These elements play a crucial role in forming diverse chemical compounds with unique structural and electronic properties.

Purpose of the Study:

• To investigate the stabilization of labile or non-existent free molecules through their incorporation into transition metal complexes.
• To explore the oligomerization of molecular units induced by metal ions or complexes, leading to the formation of solids or hybrid clusters.

Main Methods:

• Synthesis and characterization of transition metal complexes featuring heteroatomic ligands.
• Structural analysis of the resulting complexes and clusters, including inorganic cores and organometallic ligands.

Main Results:

• Demonstrated the successful stabilization of unusual molecular species within iron complexes, such as [Cp*2Fe2(AsSe)2] (1).
• Observed the formation of oligomeric structures and hybrid clusters through metal-templated assembly of molecular units.

Conclusions:

• Heteroatomic ligands offer versatile pathways for stabilizing reactive species and constructing complex inorganic-organic hybrid materials.
• Transition metal complexation provides a powerful strategy for controlling molecular assembly and accessing novel chemical structures.