March 3, 2026

Synthesis and Ring-Opening Polymerization of Antimony(III)-Bridged 1Ferrocenophanes

Key Points

Robust polymers were synthesized via ring-opening polymerization of stiba[1]ferrocenophanes, indicating versatile applications for antimony materials.
The thermal ring-opening of fc(SbTer) produced a soluble polymeric material, showcasing new avenues for material design.
Synthesis focused on stiba[1]ferrocenophanes featuring bulky substituents, crucial for expanding polyferrocene diversity.
These findings suggest promising applications for antimony-based polymers in various material sciences.

Abstract

Main-group-bridged 1ferrocenophanes enable the incorporation of a variety of elements into polyferrocene materials through ring-opening polymerization. While antimony-containing materials have been used as flame retardants and photolithographic resists, there exists only a single example of a Sb(III) main-chain polymer. We have used the ring-opening of a stiba1ferrocenophane as a facile route to expand the family of Sb(III) main-chain polymers. Two examples of stiba1ferrocenophanes were synthesized and characterized, featuring bulky mesityl and terphenyl substituents at antimony, fc(SbMes) and fc(SbTer). fc(SbTer) was found to undergo thermal ring-opening polymerization to form a soluble and robust polymeric material, PFSbTer. These results further expand the range of polyferrocenes and provide access to a new class of Sb(III)-containing materials.

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Cite This Study

Young et al. (Tue,) studied this question.

synapsesocial.com/papers/69a75a5cc6e9836116a2011a https://doi.org/https://doi.org/10.1021/acs.inorgchem.5c04816

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