Hybrid materials comprising ferrocene and diaminoborane moieties: linear concatenation versus macrocyclization

Area of Science:

• Organometallic Chemistry
• Polymer Chemistry
• Materials Science

Background:

• Ferrocenophanes are organometallic compounds with unique structural and electronic properties.
• Diaminoferrocenes serve as versatile building blocks in coordination and supramolecular chemistry.
• Borane chemistry offers pathways to novel inorganic-organic hybrid materials.

Purpose of the Study:

• To synthesize new diazabora-[3]ferrocenophane macrocycles.
• To explore the reactivity of borane and diaminoferrocene monomers.
• To investigate the formation of larger macrocycles and linear oligomers.

Main Methods:

• Si/B exchange condensation reactions between borane and diaminoferrocene monomers.
• Stepwise reaction processes to control macrocycle and oligomer formation.
• Incorporation of p-phenylene moieties for alternating polymer structures.

Main Results:

• Successful synthesis of diazabora-[3]ferrocenophanes.
• Formation of larger macrocycles and linear oligomers via stepwise reactions.
• Achieved alternating concatenation of monomers through p-phenylene incorporation.

Conclusions:

• The Si/B exchange condensation is an effective method for creating ferrocenophane-based macrocycles and oligomers.
• The modular approach allows for the design of complex organometallic architectures.
• This study expands the synthetic toolkit for ferrocene-containing polymers and materials.