Synthesis and Structural Characterization of the Diborylated Organometallics 1,3-Bis(dibromoboryl)-1′,2′,3′,4′,5′-(pentamethyl)ferrocene and 1,3-Bis(dibromoboryl)cymantrene

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Abstract

Diborylated organometallic complexes can function as precursors for boron-bridged organometallic macromolecules. So far, mainly ferrocenylborane polymers featuring a 1,1′-connectivity pattern have been prepared from 1,1′-bis(dibromoboryl)ferrocene. In this paper we present the optimized synthesis protocols for 1,3-bis(dibromoboryl)-1′,2′,3′,4′,5′-(pentamethyl)ferrocene and 1,3-bis(dibromoboryl)cymantrene. Both compounds have been fully characterized by NMR spectroscopy as well as X-ray diffraction techniques and possess promising potential for the preparation of boron-bridged polymers with a 1,3-connectivity pattern.

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