Carbon-rich organometallics: synthesis and characterization of new ferrocenyl end-capped bis(butadiynyl) fluorene derivatives

A series of carbon-rich fluorene-derived bis(ferrocenylbutadiynyl) complexes were synthesized. The spectroscopic, photophysical, electrochemical and structural properties of these compounds were compared to those of the corresponding bis(ferrocenylethynyl) counterparts.