Hexadecahydrotetrabenzo[a,c,d,f]fluorene – Ligand, available by Friedel–Crafts fluorene cycloalkylation. Synthesis, crystal and molecular structure of (η5-C29H34)(η5-C5H5)ZrCl2

Friedel–Crafts cycloalkylation of fluorene with 1,4-dichlorobutane has been studied in different conditions. This reaction allows to obtain the product of exhausting fluorene alkylation, hexadecahydrotetrabenzo[a,c,d,f]fluorene – perspective η5 ligand. The simplest zirconocene has been synthesized and its structure has been confirmed by X-ray diffraction analysis. The molecule of this compound possesses skewed conformation of metallocene fragment with the phenylene moiety of fluorenyl ligand oriented towards the front side of metallocene wedge.