One-dimensional polymers based on silver(I) cations and organometallic cyclo-P3 ligand complexes

Area of Science:

• Supramolecular Chemistry
• Organometallic Chemistry
• Coordination Polymers

Background:

• The synthesis of novel supramolecular aggregates is crucial for developing advanced materials.
• Organometallic cyclo-P3 ligands offer unique structural and electronic properties for coordination chemistry.

Purpose of the Study:

• To synthesize and characterize the first supramolecular aggregates incorporating organometallic cyclo-P3 ligand complexes.
• To investigate the structural diversity and dynamic behavior of resulting one-dimensional (1D) coordination polymers.

Main Methods:

• Synthesis of organometallic cyclo-P3 ligand complexes: [CpRMo(CO)2(eta3-P3)] (CpR=Cp, Cp*).
• Reaction with silver salts (AgX) to form 1D coordination polymers.
• Structural elucidation using X-ray crystallography.
• Characterization through spectroscopic methods (NMR) and analytical measurements.

Main Results:

• Formation of 1D coordination polymers with varying structures and compositions based on reactants and stoichiometry.
• Discovery of homoleptic silver complexes with octahedral Ag(I) centers coordinated to six phosphorus atoms.
• Demonstration of distinct cyclo-P3 ligand coordination modes (edge-bridging vs. face-bridging) influencing silver coordination.
• Evidence of extensive depolymerization and dynamic behavior in solution and solid-state.

Conclusions:

• The first supramolecular aggregates with organometallic cyclo-P3 linking units have been successfully synthesized.
• The study reveals the formation of novel 1D coordination polymers with unique structural features and dynamic properties.
• These findings expand the scope of coordination polymer chemistry and highlight the versatility of cyclo-P3 ligands.